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Davis Garden Show broadcasts live
on KDRT 95.7 FM, Davis, California
Thursdays at noon.

Rebroadcasts Saturday 9 a.m.

Questions or comments for the show? Email us!
Check out the Redwood Barn Nursery website -- especially for Don's articles.
Check out the Redwood Barn Nursery Facebook page on Facebook

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(All about... Pruning, Citrus, Bulbs, and Whiteflies)

Recent shows by date (newest at top)
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For show descriptions visit the KDRT show page here: Davis Garden Show on KDRT

February 22 2024
February 15 2024
February 08 2024
February 01 2024
January 25 2024
January 18 2024
January 11 2024
January 04 2024

December 28 2023
December 21 2023
December 14 2023
December 07 2023
November 30 2023
November 23 2023
November 16 2023
November 09 2023
November 02 2023
October 26 2023
October 19 2023
October 12 2023
October 05 2023
September 28 2023
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September 14 2023
September 07 2023
August 31 2023
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August 17 2023
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August 03 2023
July 27 2023
July 20 2023
July 13 2023
July 06 2023
June 29 2023
June 22 2023
June 15 2023
June 08 2023
June 01 2023
May 25 2023
May 18 2023
May 11 2023
May 04 2023
April 27 2023
April 20 2023
April 13 2023
April 06 2023
March 30 2023
March 23 2023
March 16 2023
March 09 2023
March 02 2023
February 23 2023
February 16 2023
February 09 2023
February 02 2023
January 26 2023
January 19 2023
January 12 2023
January 05 2023

December 29 2022
December 22 2022
December 15 2022
December 08 2022
December 01 2022
November 24 2022
November 17 2022
November 10 2022
November 03 2022
October 27 2022
October 20 2022
October 13 2022
October 06 2022
September 29 2022
September 22 2022
September 15 2022
September 08 2022
September 01 2022
August 25 2022
August 18 2022
August 11 2022
August 04 2022
July 28 2022
July 21 2022
July 14 2022
July 07 2022
June 30 2022
June 23 2022
June 16 2022
June 09 2022
June 02 2022
May 26 2022
May 19 2022
May 12 2022
May 05 2022
April 28 2022
April 21 2022
April 14 2022
April 07 2022
March 31 2022
March 24 2022
March 17 2022
March 10 2022
March 03 2022
February 24 2022
February 17 2022
February 10 2022
February 03 2022
January 27 2022
January 20 2022
January 13 2022
January 06 2022

December 30 2021
December 23 2021
December 16 2021
December 09 2021
December 02 2021
November 25 2021
November 18 2021
November 11 2021
November 04 2021
October 28 2021
October 21 2021
October 14 2021
October 07 2021
Sept 30 2021
Sept 23 2021
Sept 16 2021
Sept 09 2021
Sept 02 2021
Aug 26 2021
Aug 19 2021
Aug 12 2021
Aug 05 2021
July 29 2021
July 22 2021
July 15 2021
July 08 2021
July 01 2021
June 24 2021
June 17 2021
June 10 2021
June 03 2021
May 27 2021
May 20 2021
May 13 2021
May 06 2021
April 29 2021
April 22 2021
April 15 2021
April 08 2021
April 01 2021
Mar 25 2021
Mar 18 2021
Mar 11 2021
Mar 04 2021
Feb 25 2021
Feb 18 2021
Feb 11 2021
Feb 04 2021
Jan 28 2021
Jan 21 2021
Jan 14 2021
Jan 07 2021

Dec 31 2020
Dec 17 2020
Dec 10 2020
Dec 03 2020
Nov 26 2020
Nov 19 2020
Nov 12 2020
Nov 5 2020
Oct 29 2020
Oct 15 2020
Oct 08 2020
Oct 01 2020
Sept 24 2020
Sept 17 2020
Sept 10 2020
Sept 03 2020
Aug 20 2020

reference links
Aug 13 2020
6 Aug 2020

30 July 2020
Bats, vegetable garden soil issues, making a butterfly and cutting garden, and more
23 July 2020
Small trees, spittlebugs, training tomatoes, butterflies, sweet violets, and more
16 July 2020
Tomatilloes, ground cherries, grapefruit issues, and more
09 July 2020
Citrus disease news, Zaiger obituary and pluots, leaf curl details, and more
02 July 2020
Watering issues, peach leaf curl, training fruit trees in the landscape, and more
25 June 2020
Pruning roses, bindweed management, training young crapemyrtles, allelopathy, and more
18 June 2020
Fertilizing vegetables, sprinkler recommendations, the fall planted crops, and more
11 June 2020
Pinching tomatoes, growing melons, heavy metals in organic products, and more
04 June 2020
Summer flowers, peppers and eggplants, and more
28 May 2020
Watering issues, defining a beefsteak tomato, and more about tomatoes
21 May 2020
Peach tree issues, quick privacy plants, scarred nectarines, watering principles, and more
14 May 2020
Your email questions, flowers for cutting continued, and more
07 May 2020
Soil at a new house, managing cherry trees for size and in warm winter climates, flowers for a cutting garden on a budget, and more
30 April 2020
Lawn spots, holey leaves, favorite perennials, spring flowers, and more
23 April 2020
More tomato basics, spider mites, flowering house plants, and much more
16 April 2020
Spring garden questions, and compost basics
09 April 2020
More about vegetable gardening
02 April 2020
Getting started with vegetable gardening
26 March 2020
Sorry, this week's show is a repeat of last week's rebroadcast about avocadoes. We should have a new program for next week.
19 March 2020
Talking about avocadoes!
12 March 2020
Chironomids, more raised planter questions, using camphor leaves, tomato success, and more
05 March 2020
Soil issues, raised planters, scale on citrus, and more
27 February 2020
Ten tips for easier gardening
20 February 2020
Winter flowering plants, rosemary and Spanish lavender, summer pruning, and more
13 February 2020
Planting and amending soil, early tomato discussions, white crowned sparrows, hydrangeas, and more
06 February 2020
Pollenizing pluots, encouraging soldier beetles and bees, and more
30 January 2020
Pollarding trees, crapemyrtles, winter weeds, moldy flowers, and more
23 January 2020
Figs, almonds, native plants for pollinators, African violets, and more
16 January 2020
Rose cuttings, propagation principles, overwintering mosquitoes, and more
09 January 2020
Praying mantis, square planting holes, growing bonsai, container gardening, and more
02 January 2020
Special rebroadcast all about fruit trees, focus on citrus
26 December 2019
Special rebroadcast all about fruit trees, deciduous types
19 December 2019
Bareroot industry changes, citrus hardiness, alcohol and paperwhites, freesias, ET concept, and more
12 December 2019
Defining terms, daffodils vs narcissus, small trees for a patio, and more
05 December 2019
Pruning woody perennials, design principles, holiday cactus flowers, apples for pie, and more
28 November 2019
Talking about lawns, excerpts from programs earlier this fall
21 November 2019
Don answers lots of garden questions
14 November 2019
Fragrant flowers, more on turf, holiday plant toxicity, and more
07 November 2019
Leaves for mulch, citrus rootstock, fall color, citrus splitting and more
31 October 2019
Begonia diseases, working with wet and heavy soil, carbon and soil, and more
24 October 2019
Winter flowering shrubs, budworm on buddleia, favorite lavenders, and more
17 October 2019
Planting poppies, hardiness of succulents, easy flowers continued, and more
10 October 2019
Dew point, fragrant shrubs, fall veggies, easy flowering plants, and more
03 October 2019
Cool season annuals for winter and spring bloom
26 September 2019
Talking about lawns, Part 3, plus fruit tree limb breakage, berries in barrels, and more
19 September 2019
Talking about lawns, Part 2, and more
12 September 2019
Talking about lawns, Part 1
05 September 2019
Shothole on plum, brassicas and other fall veggies, seeding lawns, and more
29 August 2019
Kurapia ground cover, growing avocadoes, phytophthora issues, and more
22 August 2019
Sunflower plants and goldfinches, summer stink bugs, deep watering trees, plant reactions to high temps, and more
15 August 2019
Milkweed aphids, leaf eaters, honeylocust trees, nonrecommended plants, hummingbird flowers, and more
08 August 2019
Sensitive plants, lawn fungus, growing asparagus, top ten things I say this time of year, and more
01 August 2019
August flowers, drought signs, crapemyrtle blooms, olive diseases, using coffee in the garden, and more
25 July 2019
Summer garden questions, plants we should water more, brown marmorated stink bug, and more
18 July 2019
Watering with microsprayers, IPM for whiteflies, about weevil damage, sources of nitrogen, and more
11 July 2019
Blossom end rot, burnt Japanese maple leaves, lavender plants, IPM and cherry worms
04 July 2019
Special rebroadast about drip irrigation
27 June 2019
Squash and bell pepper questions, mystery plums, houseplant problems, and more.
20 June 2019
Grapes grown like trees, tomato issues, coffee grounds, quick answers, and more.
13 June 2019
Figs, spots on peas, soil pH, blueberries, and more.
06 June 2019
Fast vines for screen, easy flowers, grapes, planting fruit trees, and more.
30 May 2019
Weeds, citrus issues, planting seasons, and more.
23 May 2019
Gardenia leaves yellowing, thinning fruit, tomato leaf spots, and more.
16 May 2019
Plants for shade, watering once a week, and more.
09 May 2019
All about vines, a little about cherry worms, and more.
02 May 2019
Native plant app, invasives, seasonal pest problems, wedding flowers, and more.
25 April 2019
Three sisters planting technique, principes of weed management, and more.
18 April 2019
Garden basics, quick rose disease review, rotating tomatoes, small tree suggestions, and more.
11 April 2019
Citrus rootstocks, fasciation, rose diseases, and more.
04 April 2019
Rooting cuttings, ferns as houseplants, heucheras, and more.
28 March 2019
Mildew resistant Impatiens, growing olive trees in pots, temperatures for tomatoes, citrus brown rot, gophers, and more.
21 March 2019
Citrus psyllid, mealybugs on orchids, hops again, rosemary, color for the shade, and more.
14 March 2019
Amending soil, no-till gardening, potting mixes, and more.
07 March 2019
Water use by fruit trees, growing potatoes, peonies, about rootstocks, and more.
28 February 2019
About seedlings and seed starting, talking to kids about gardening, and more.
21 February 2019
Oxalis, squirrels, valley oaks, small space gardening, and more.
14 February 2019
Soil temps for seeds, getting tomatoes early, ginkgo trees changing gender, and more.
07 February 2019
Tropicals and cold, peach leaf curl and fruit infection, crop rotation for veggies, and more.
31 January 2019
Lots of quick questions, growing hops, planting fruit trees, raised garden beds, and more
24 January 2019
Annual bluegrass, mason bees, year round citrus, and more
17 January 2019
Selling bamboo and nursery licenses, spraying fruit trees, lawn alternatives, house plants and more
10 January 2019
Rose diseases, roses for shade, splitting oranges, and more
03 January 2019
Quick pruning notes, pruning roses, David Austin, and more

27 December 2018
Rebroadcast; all about fruit trees part 2.
20 December 2018
Rebroadcast; all about fruit trees part 1.
13 December 2018
More on houseplants, insect diversity, poinsettias, citrus in pots and more.
06 December 2018
Spider mites, splitting citrus, winter houseplant problems, and more.
29 November 2018
Lots of questions; lovage, chia, comparing mulch vs amendments, and more.
No program Thursday, Nov 22 2018; station closed for Thanksgiving. Rebroadcast of the Nov. 15 show.

15 November 2018
Lawn alternatives continued, dry fall issues, garden myths, and more.
08 November 2018
Flowering houseplants, lawn alternatives, plumerias, citrus in containers, and more.
01 November 2018
Rose pruning continued, grass under trees, California poppies, fall color, chamomile, and more.
25 October 2018
Controlling spiders, pruning oleander, subtropicals, roses, planting peas.
18 October 2018
Tree root problems, nutsedge management, moon gardening, and more.
11 October 2018
Planting bulbs, veggies for shade, choosing bamboo, cover crops, and more.
04 October 2018
Shade perennials, peach leaf curl, removing bermudagrass, and more.
27 September 2018
Nectaries, shade ground covers, hot peppers, opossums, and more.
20 September 2018
Watering, mildew, lawn overseeding, and more.
13 September 2018
Plants for sidewalk strips, pest control info online, and more.
06 September 2018
Don talks about soils and available water, plus allelopathy of sunflowers, and amending soil.
30 August 2018
Fruit fly quarantine, climate zones, raised veg beds, tomato harvest, fastest fruit trees.
23 August 2018
All about lawns! Plus protecting fruit from birds and critters.
16 August 2018
Carrots, bananas, and jasmine; ironwood and maples, a bit about lawns, and more!
09 August 2018
Tomatoes for heat, pruning woody salvias, vines for shade, mycorrhizae, and more!
02 August 2018
Dipladenias and mandevillas, dill and cilantro, spots on Dracena, and more!
26 July 2018
Citrus and climate change, running bamboo, replacing drip lines, quick summer color, and more!
19 July 2018
All about drip irrigation!
12 July 2018
Container plantings, dahlias, watering pots, foxtails, agaves for mescal, and more.
05 July 2018
Summer annuals, compost questions, boxwood issues, and more.
28 June 2018
Holy leaf season, oleander toxicity, homemade pesticides, tomato problems, and more.
21 June 2018
Amending soil, drip irrigation principles, mealybugs on African violets, and more.
14 June 2018
Worms in cherries, landscaping to reduce noise, disappearing plants, and more.
07 June 2018
Japanese maples for sun, defining sun vs shade, growing cuttings, and more.
31 May 2018
Geranium budworm, how to grow blueberries, watering big trees, and more.
24 May 2018
Holes in the leaves, garden pests in spring, and more.
17 May 2018
Bonsai care, milkweed, butterflies, tomato temperatures, and soil conditioners, and more.
10 May 2018
Dog Tuff turf, dead Japanese maple, tarragon, rose cuttings, earwigs, watermelons, and more.
03 May 2018
Favorite perennials, gardenia questions, and more.
26 April 2018
Watering vegetables, renewing a boxwood hedge, heat-loving flowers, and more.
19 April 2018
Cactus questions, crapemyrtle issues, new houseplant trends, and more.
12 April 2018
Orchid fertilizers, managing Photinias, and more.
05 April 2018
Tomato heat strategies, floppy Peruvian lilies, reduced tilling, and more.
29 March 2018
Training young fruit trees, some unusual summer vegetables, shade plant discussion, and more.
22 March 2018
Helping kalanchoes flower, tulips in So Cal, dealing with gophers, and more.
March 15: no show! Don was sick!
08 March 2018
Rebroadcast: about house plants.
01 March 2018
Acacia problems, growing potatoes, easy perennials, and more.
22 February 2018
Trees for So Cal, controlling bamboo, Champagne grapes, and more.
15 February 2018
Nandina and birds, wildflower seed mixes, early tomato tips, drip vs microsprayers, and more.
08 February 2018
Pruning avocadoes, chilling hours for fruit trees, citrus in containers, and more.
01 February 2018
Rebroadcast: avocadoes.
25 January 2018
Pluots and apriums, pests and frost damage on citrus, mildew on shrubs, and more.
18 January 2018
Training cherry trees, growing elderberries, white sunflowers, and more.
11 January 2018
Rebroadcast from late winter 2017

04 January 2018
Fruit trees in pots, winter watering, winter citrus care, and more

28 December 2017
Rebroadcast: all about fruit trees 3, focus on citrus
21 December 2017
Rebroadcast: all about fruit trees 2
14 December 2017
Citrus disease update, Davis water, flowers for bees in winter, ice watering orchids, and more!
07 December 2017
Bougainvilleas, buddleias, big shade trees, tropical temperature limits, and more!
30 November 2017
Lots of gardening questions answered!
23 November 2017
Thanksgiving Day rebroadcast of 2011 winter gardening show.
16 November 2017
Early bareroot, coastal shade garden plants, bamboo choices, and more.
09 November 2017
Mulch, soils, fertilizer, nitrogen, and more.
02 November 2017
About house plants.
26 October 2017
Roses for privacy, lawn feeding guidelines, trees for the desert, and more.
19 October 2017
Hedges, figs, shady ground covers, and more.
12 October 2017
Upgrading an old lawn, bringing in houseplants, and more.
05 October 2017
Blueberries, raspberries and blackberries, feijoas, strawberry tree, and more.
28 September 2017
Neighbor tree roots and bamboo, creeping thyme problems, bugs on pomegranates, and more.
21 September 2017
Fragrant plants for the garden, and more.
14 September 2017
College student questions, overseeding lawns, bulbs we plant now, and more.
07 September 2017
More on tomato ripening, crabgrass questions, favorite plums, USDA zones, and more.
31 August 2017
Hot weather watering, Jerry Baker RIP, small trees, ripening tomatoes, and more.
24 August 2017
What to plant in August, houseplants safe for kitties, aphids on crapemyrtles and other trees, and more.
17 August 2017
Soil prep, new thoughts on rose pruning, carnivorous plants, and more.
10 August 2017
Cool season flowers and vegs, fiddleleaf fig, pecan problems, redwood alternatives, and more.
03 August 2017
Mid-summer flowers, fleas, grassy weeds, lots of questions.
27 July 2017
Japanese maples, Big Beef tomatoes, more on sprinklers.
20 July 2017
Sunburned plants, sprinkler systems, and more.
13 July 2017
Blossom end rot, pruning tomatoes, subtropical hardiness, citrus leafminer, and more.
06 July 2017
Summer pests and opportunities, hydrangeas, succulents, and more.
29 June 2017
Watering new natives, mites on tomatoes and grapes, pronouncing plant names, and more.
22 June 2017
Heat safety, fungus gnats, more on shade trees, and more.
15 June 2017
Selecting a shade tree, problems with fruit set, and more.
08 June 2017
Companion planting, trees we don't recommend and trees we do, and more.
01 June 2017
Plants around pools, root suckers invading from neighbor, and more.
25 May 2017
Soil issues, turning sandbox into planter bed, fruit trees for elderly parents, and more.
18 May 2017
Defining Integrated Pest Management, dealing with earwigs, goldenchain trees, and more.
11 May 2017
Quick questions, plants for shade, dealing with weeds, and more.
04 May 2017
Citrus problems, figeater beetle larvae, rototilling, square foot gardening, and more.
27 April 2017
Special rebroadcast: all about tomatoes.
20 April 2017
The tomato elevator talk, ground covers for bees, what semidwarf means, brown rot, and more.
13 April 2017
Strawberries, limb drop from big trees, bacterial canker, low chill lilacs, and more.
06 April 2017
Spring diseases, fireblight, ground covers near fruit trees, growing watermelons, and more.
30 March 2017
Your questions, drip for containers, squirrels, apricots, milkweed toxicity, and more.
23 March 2017
Lilacs; suggestions for shrubs for shade, russet mites on tomatoes, and more.
16 March 2017
Rebroadcast from April 2016: lots of quick questions, fireblight, and more.
09 March 2017
Starting peppers from seed, identifying aroids, low-light houseplants, and more.
02 March 2017
Special rebroadcast: all about tomatoes.
Station had technical problems, so we've uploaded this special repeat show for this week.
23 February 2017
Citrus followups, when avocadoes fruit, veggies in February, spiders, fireblight, and more.
16 February 2017
More avocado comments, pruning cherries, why fruit trees don't bear, and more.
09 February 2017
All about fruit trees 4: Avocadoes.
02 February 2017
All about fruit trees 3: Citrus.
26 January 2017
Chilling hours, house plants, fruit tree facts, and more.
19 January 2017
Preventing fruit on flowering plums; pickled paperwhites, some pruning principles, and more.
12 January 2017
Soil for blueberries, indoor lighting issues, chilling hours, and more.
05 January 2017
All about fruit trees 2.
29 December 2016
All about fruit trees 1.
22 December 2016
Fruit tree hedges, sap on fruit trees, ginkgo leaves, anthuriums, and more.
15 December 2016
Houseplant lifespans, growing brugmansias, loropetalums, and more.
08 December 2016
Poinsettias, houseplants; planting under a sycamore tree, and more.
01 December 2016
Rebroadcast; bareroot season tips.
24 November 2016
Rebroadcast; pruning advice for winter.
17 November 2016
Rebroadcast; lots of quick questions, dormant spraying, and native plants.
10 November 2016
Managing bamboo, hard water, frost protection.
03 November 2016
Special rebroadcast: low water landscaping principles.
27 October 2016
Cat repellents, fireblight remedies, houseplants, and more.
20 October 2016
Frost, pecans, chickpeas, houseplants in low light, flowers we plant in the fall, and more.
13 October 2016
Birds, rain, frost, seasonal changes, and more.
06 October 2016
Rebroadcast: interview with author Robert Kourik about his book Understanding Roots.
29 September 2016
Overwintering tropicals; garden apps, vegan plant foods, powdery mildew, and more!
22 September 2016
Plant disease basics; about potting soils, fall veg planting tips, and more!
15 September 2016
Butterfly gardening, cool season vegetables, black vine weevil, fall garden opportunities!
08 September 2016
Mosquito plants, open pollinated sauce tomatoes, digging bermudgrass, ceanothus issues, and more!
01 September 2016
Late summer flowers, bermudagrass, struggling vegetables, and more!
25 August 2016
Coastal gardening advantages, continuing fruit selection, melon hybrids, and more!
18 August 2016
Comparing climate zones, selecting fruit trees, and more!
11 August 2016
Summer leaf scorch, advice for a new landscape, reviewing internet garden tips, and more!
04 August 2016
Easy house plants; spider mites, downy mildew on basil, lavenders, and more!
28 July 2016
All about aphids; jays, mockingbirds, and dragonflies in the garden, and more!
21 July 2016
Summer garden problems, houseplants, weed tips continued, and more!
14 July 2016
Watering, pomegranate mites, crapemyrtle colors, alternate bearing, and more!
07 July 2016
Rutagabas, brussels sprouts, caterpillars, summer weeds, and more!
30 June 2016
Soil pH, raised planters, ants in pots, and more!
23 June 2016
Internet advice, plants for a chicken coop, planting lupines, and more!
16 June 2016
Skunks, avocadoes, Japanese maples, more on watering, and more!
09 June 2016
Anthracnose, common names, garden zones, watering basics, and more!
02 June 2016
Okra, hops, peppers, and more!
26 May 2016
More on summer vegetables, and more!
19 May 2016
Summer vegetables, a quick guide.
12 May 2016
Feeding vegetables, easy perennials, disease followup questions, and more!
05 May 2016
Flaming weeds; lilacs in our zone, how to grow peppers, easy flowers, Peruvian lilies, and more!
28 April 2016
Dealing with roots; fireblight, tomato selections, bur clover, and more!
21 April 2016
Don was off giving a talk. Rebroadcast interview: Robert Kourik, author of Understanding Roots!
14 April 2016
Vines for shade, aphids, curling citrus leaves, pawpaws, and more!
07 April 2016
Lots of quick questions, plus tomatoes in pots, and more!
31 March 2016
Growing unusual edibles, more about feeding plants, and more!
24 March 2016
Growing chayote, getting started with the summer garden, and more!
17 March 2016
Pruning citrus, surface roots of trees, trees in pots, and more!
10 March 2016
Limes, grapefruits, low water grasses and more!
03 March 2016
More on blueberries, leaf curl, low chill peaches, Poa annua, and more!
25 February 2016
Living stones, potting soils, citrus from seed, blueberries, and more!
18 February 2016
Plant suggestions for a screen; home remedies, when plants fruit, training young trees, and more!
11 February 2016
Seedling mixes, neglected citrus, plant names, and more!
04 February 2016
Lawn seed blends, aphids on crapemyrtle, mustard cover crop, and more!
28 January 2016
Garden zones, heavy soil; proper pruning of crapemyrtles, controlling tree size.
21 January 2016
Don talks about fruit trees!
14 January 2016
January and February questions; grafting compatibility, plumerias, and more!
07 January 2016
Lots of gardening questions answered!

31 December 2015
Special holiday rebroadcast: low water landscaping
24 December 2015
Natives, lots of questions, dormant sprays, and more
17 December 2015
Don lost his voice! Repeat of the Nov 19 interview with author Robert Kourik.
10 December 2015
El Nino update, more on freeze protection, living Christmas trees, dormant sprays, and more
03 December 2015
Favorite plants; chilling injury on tropicals, freeze damage in the garden
19 November 2015
Understanding Roots: interview with author Robert Kourik
12 November 2015
Narrow plants for screens, native grasses, conifer issues, and more!
05 November 2015
Gardening terms, cyclamen, poplar roots, and more!
29 October 2015
Ants, things that dig up lawns, soil types, fertilizer myths, and more!
22 October 2015
Planting and watering discussions, orchid issues, and more!
15 October 2015
Replacing your lawn, step by step!
08 October 2015
Winter veggies, easy houseplants, pineapple flower, using leaves as mulch, and more!
01 October 2015
Cottonwoods and willows; houseplants, air plants, pepper questions, and more!
24 September 2015
Fall garden calendar, feeding vegetables, whiteflies, drip watering, air plants, and more!
17 September 2015
Cover crops, planting under oaks, glowing snake plants, and more!
10 September 2015
Plants that grow anywhere, gardening with kids, winter flowers, garlic, and more!
03 September 2015
Romanesco broccoli, growing subtropicals, microclimates, and more!
27 August 2015
Quick shade, nativars, attracting hummingbirds, and more!
20 August 2015
Cool season vegetables; root barriers, grevilleas, planting perennials, and more!
13 August 2015
Basil from the grocery store, fragrance in the garden year around, and more!
06 August 2015
Growing hibiscus, replanting lawns, talking about jasmines, short-lived shrubs, and more!
30 July 2015
Allergy trees, low water ground covers, problems with neighbor trees, and more!
23 July 2015
More drought discussions, gray water, allergy trees, and more!
16 July 2015
High temperatures and summer veg's, soft vs hard water, watering basins, and more!
July 9: no show! Don and Lois were off.
02 July 2015
Narrow yards and privacy, tomatoes dying, citrus in containers, and more!
25 June 2015
Summer pests, pruning tomatoes, basic gardening answers, and more!
18 June 2015
Pumpkin problems, pleaching apples, amending soil for trees, and more!
11 June 2015
Tree watering calculations, leaf senescence, epsom salts, when to plant, and more!
04 June 2015
Tree roots, more on fruit development, hot peppers, melon flowers, and more!
28 May 2015
Capers, mildew, how fruit ripens, growing herbs, and more!
21 May 2015
Don answers lots of questions! Warty oranges, tomatoes in the shade, small low-water trees, and more!
14 May 2015
Pretty flowers for May, rare fruit club, the science of watering, and more!
07 May 2015
Don talks about chilling portions, avocadoes, vegetable questions, and more!
30 April 2015
Pruning kiwi vines, low-water annuals, herbs in planters, and more!
23 April 2015
Raised beds, internet pest control remedies, redwoods and their cousins, artificial turf, and more!
16 April 2015
Sparrows, wisteria, gardening under walnuts, and drought regulation updates, and more!
09 April 2015
Fruit tree availability, low water houseplants, marigold myths, trap crops, and more!
02 April 2015
Drought emergency update; seedlings indoors, budworms on petunias, and more!
26 March 2015
Lots of spring garden questions!
19 March 2015
Vines for shade, compost tea, short tomatoes, and more.
12 March 2015
Lots of spring questions! Laurel problems, oxalis, alternatives to turf, and more.
05 March 2015
Lois interviews Mary Schiedt, Yolo Basin Foundation volunteer extraordinaire!
26 February 2015
Organic veggies, grafted fruit trees, bamboo fertilizer, living stones, and more!
19 February 2015
Culinary trends, citrus in pots, other container edibles, bonsai fruit trees, and more!
12 February 2015
Citrus greening disease, winter flowers, dealing with heavy soil, and more!
05 February 2015
Citrus critters, getting ready for spring veg planting, bamboo choices, phenology, and more!
29 January 2015
Feeding plants, bareroot care, tomato weather, the best peaches, and more!

22 January 2015
Fireblight; tomatoes by July, killing weeds with vinegar, choosing a shade tree, and more!
15 January 2015
Mulberries and other easy fruit trees; crapemyrtle pruning, rose pruning and more!
08 January 2015
Chilling hours, moldy flowers, self-watering pots, potting soils, and more!

01 January 2015
Holiday rebroadcast: advice for winter pruning!
25 December 2014
Holiday rebroadcast: low water landscaping!
18 December 2014
Warm winter, lack of chilling; planning ahead, TomTatoes, managing weeds in winter, and more!
11 December 2014
Special rebroadcast: Don talks about native plants!
04 December 2014
Screening a two story house; low-chill peaches, dealing with bindweed, and a quick review of fruit trees for the bareroot season.
27 November 2014
Special rebroadcast: houseplants clean the air, berries to plant now, winter color in the garden, and more.
November 20 2014: rebroadcast of November 13 show. Don was teaching a course on sustainable edibles! There will be a special repeat show on Thanksgiving Day. See you in two weeks!

13 November 2014
Succulents indoors, spider webs, disease prevention in the veg garden, apples and pears, persimmons, and more.
06 November 2014
Lots of quick questions, then Don talks about native plants.
30 October 2014
Fall color, watering new plantings, wildflowers, citrus leafminers, and more!
23 October 2014
California pepper trees; reseeding a lawn, growing apples and pears, and more!
16 October 2014
Edible flowers, low-water small trees, bok choi, heavy soil questions, and more!
09 October 2014
Primocane berries, indoor plants for new gardeners, grafted shade trees and gardenias, and more!
02 October 2014
Amending when you plant, watering more effectively, bamboo for screening, and more!
25 September 2014
Low-water plants for shade; replacing your lawn, and more!
18 September 2014
Watering rules, native plant resources, keeping houseplants healthy, and more!
11 September 2014
Leaf burn on maples, amending soil for new landscapes, borers in olives, and more!
04 September 2014
12 tips for water reduction, drought watering restrictions, flower borders, and more!
28 August 2014
Winter tomatoes, drought issues, definitions, trumpet vines, and more!
21 August 2014
Choosing a tree, borers in roses, easy houseplants, and more!
14 August 2014
Saratoga bay tree, issues with native plants, fall vegetables, snapdragons; reducing lawn watering, and more!
07 August 2014
West Nile spray impact on the garden; capeweed, passionflower caterpillars, lawn weeds, echibeckias and digeplexis, pluots, and more!
31 July 2014
Vegan plant food, plants for a warm patio, mealy peaches, Turkey oaks, and more!
24 July 2014
Flowers for cutting; tomato blight, summer pruning, mulberry roots, scorched magnolias, and more!
17 July 2014
Tomato fruit set, lawn questions, screen ideas, nandina berries, and more!
10 July 2014
Summer fruit problems, brown areas in lawn, roses for shade, and more!
03 July 2014
Flowers for cutting, mosquito plant, mildew on grapes, digiplexis, flowers for a garden party, and more!
26 June 2014
Watering, soils, algae, turkeys, rats, and more!
19 June 2014
General watering issues; problems with apricots and peaches, and more!
12 June 2014
Pinching tomatoes, watering redwoods, late veg planting, and more!
05 June 2014
June in your garden, and more!
29 May 2014
Plants in pots, dolomite lime, vinegar as an herbicide, pruning evergreens and hedges, and more!
22 May 2014
Don answers three dozen spring garden questions!
15 May 2014
Worms and larvae in garden beds; low-water plant resources, problems with things not leafing out, and more!
08 May 2014
Phormiums, comments about compost and mulch, cucumber bitterness, and more!
01 May 2014
Spots on leaves, rose issues, yellow leaves, laurels; conserving lawn water, and more!
24 April 2014
Watering large trees; calculating mulch, more on blueberries, mandarins, fireblight, and more!
17 April 2014
Trademarks and BrazelBerries; blueberries, clematis, Don's favorite tomatoes, and more!
10 April 2014
Easy flowers; plants for dry shade, and more!
03 April 2014
Special rebroadcast: all about tomatoes!
27 March 2014
How long flowers bloom, artichokes from seed, landscape designers, and more!
20 March 2014
Corn in pots, quick hedges, tomatoes in pots, primroses, biochar, and more!
13 March 2014
Special rebroadcast on low water landscaping!
06 March 2014
Cleanest shade trees; indoor Ficus, followup freeze issues, GMO grass seed, and more!
27 February 2014
Controlled-release fertilizers, soil temps, yellow leaves, corn meal, hops, fragrant flowers, and more!
20 February 2014
Whiteflies, drip systems, spots on houseplant leaves, and more!
13 February 2014
Planting with compost, starting African violets, moldy flowers, indoor succulents, and more!
06 February 2014
Three-in-one-hole fruit trees vs multi-graft; rose availability, disposing of old pesticides, greywater issues, and more!
30 January 2014
Special rebroadcast: mostly pruning!
23 January 2014
Bulb problems, special pruning questions, and more!
16 January 2014
Drought update, freeze update (sigh); bareroot terms explained, and more!
09 January 2014
Winter fertilizing, palm problems, loquats, some pruning questions, and more!
02 January 2014
Sheet mulching to get rid of the lawn; Christmasberry shrubs, drought and freeze issues, and more!

Station closed Dec. 26
19 December 2013
December questions, winter color, dormant spray issues, and more!
12 December 2013
Poinsettias, pruning roses, post-freeze issues, and more!

05 December 2013
Composting leaves; freeze and frost protection!
Station closed November 28 2013: rebroadcast show all about bulbs.
21 November 2013
Bulb planting season; managing berries, transplanting houseplants; mistletoe, mandarins, and more!
14 November 2013
Transplanting palms; Lois talks about hummingbirds; berries, bulbs, onions, and dormant sprays, and more!
07 November 2013
Fall yard cleanup, big footed bugs, citrus hedges; getting started on low-water plantings, and more!
31 October 2013
Oaks that don't drop leaves; late season mildew, growing bonsai, and more!
24 October 2013
Low-light entryway; more on cover crops, feeding citrus, and more!
17 October 2013
Looking ahead to frost protection; currants, stressed trees, growing herbs!
10 October 2013
Privacy plants, bamboo; cover crops, redwood problems, fragrant winter flowers!
03 October 2013
Supersoil, potting soils, bulbs in the lawn, dealing with varmints!
26 September 2013
Tomato review; broccoli and its cousins; easy edibles, and more about natives!
19 September 2013
More about native plants!
September 12 2013 program was a rerun from spring; Don was out of town.

05 September 2013
Late summer questions, getting started with native plants, and more!
29 August 2013
House plant food; availability issues, bermudagrass in shrubs, special soils, tropical look for partial shade, and much more!
22 August 2013
Gardening for bees; Lois'es house plant system, and more!
15 August 2013
Blueberries; blossom end rot, flowering plants for August, and more!
08 August 2013
Brown areas in lawn; pruning blackberries, watering potted trees, poisonous plants, and more!
01 August 2013
CSI horticulture; black soldier flies, flower color, scale on a citrus, and more!
25 July 2013
Straw bale gardening, gophers, removing a ficus vine, vine suggestions for shade, and more!
18 July 2013
Tomato late blight, color for the shade, and more!
11 July 2013
Veg leaf problems, heat stress, Lois has house plant questions, and more!
No program July 4 2013 -- station closed!

27 June 2013
Some favorite small trees, crapemyrtle color questions, and more!
20 June 2013
More water-saving tips, veggies in June, and more!
13 June 2013
Trees with red leaves; queen palm problems, turning off the sprinklers, and more!
06 June 2013
Growing hops, problems with kale, roses. Good bamboo for a pot, accent plants, and more!
30 May 2013
June in your garden, plus containing bamboo, lemon problems, and more!
23 May 2013
Best planting times? Hebes, sandy soils and watering, and much more!
16 May 2013
Mildew on crapemyrtles, lawn food in compost, growing plums, and much more!
09 May 2013
Don had a speaking engagement, so it's a special rebroadcast: all about tomatoes!
02 May 2013
Don's favorite tomatoes; how to feed vegetables, whiteflies on grapes, and more!
25 April 2013
Sprinkler troubleshooting, walnut flies, shade plants, and more!
18 April 2013
Oak leaves yellowing, pruning tomatoes, prepping for sod, and more!
11 April 2013
Special rebroadcast: Low Water Landscaping Parts 1 and 2!
04 April 2013
April in the garden; garden gender questions cont'd, 'bamboo food', indoor seedlings, and more!
28 March 2013
Aphids; vines for shade, making a meadow, male and female peppers? and more!
21 March 2013
Peonies and lilacs, and other flowers in March; Lois has begonia questions, and more
14 March 2013
Soil temp's for tomatoes; yellowjackets; Low Water Landscaping Part 2
07 March 2013
Adding nitrogen on a budget; Low Water Landscaping Part 1
28 February 2013
Lois has hibiscus questions! Maple vs. zelkova; pruning pears; columbines, dahlias, tuberous begonias, and more!
21 February 2013
Gardening rules, mistletoe, clematis, hand-watering, and more!
14 February 2013
Monsanto seeds, seeds from eBay, success with bareroot, freeze damage on citrus, and more
07 February 2013
Cecille Brunner rose; aphids; berries; pruning crapemyrtles; getting ready for veg planting!
31 January 2013
Lilacs and redbuds, citrus problems, and more!
24 January 2013
All-Star ground covers; fragrant roses, evening primrose, and winter gardening topics!
17 January 2013
Moving a tree; apples; fig pruning; pluerries; GMO fruit trees?
10 January 2013
Hydrangea problem, galls, onions, ground cover for path, more on fruit trees!
03 January 2013
It's bareroot season! Talking about deciduous fruit trees!
27 December 2012
Holiday rebroadcast: all about berries!
20 December 2012
Pruning an apricot; new wood, old wood; bamboo indoors; phosphorus; low water choices, and more!
Pictures from 2012 shows 13 December 2012
Greens in the winter; microclimates; easy food plants. and more!
06 December 2012
Gummosis on citrus, choosing trees for a neighborhood, poinsettias, and more!
29 November 2012
Growing from seed: blueberries, roses, citrus? Plus: questions about buddleia, old-fashioned snapdragons, and more!
No program November 22; station closed for Thanksgiving
15 November 2012
New peach leaf curl controls, time to plant onions, feeding plants in fall, and more!
08 November 2012
Allergy-free landscaping, Japanese maple dieback, Myoporum thrips, passionflowers indoors, blue orchids, and more!
01 November 2012
Plants for very low light; November in your garden, and more
25 October 2012
Hedges and screens; narrow plants for odd places, bamboo for privacy, and more
18 October 2012
Shade plants with colorful foliage; questions about perennial cover crops, Daphne, holly, and more
11 October 2012
Special program: all about fall gardening!
04 October 2012
Starting seeds indoors, landscape shrubs dying, fall planting, and more!
27 September 2012
Capers, Chitalpas and Mayten trees, alcohol for pest control, holes in the leaves, and more!
20 September 2012
Trailing shrubs with color, bolting onions, downy mildew on Impatiens; Scotts MiracleGro, and more!
13 September 2012
Low-water lawns, problem garden beds, limes and lemons, wormy pears, and more!
06 September 2012
Choosing a small tree; managing nematodes, planter box soil, and more!
30 August 2012
Growing lotus, venus flytraps, squash problems, drip systems, worms, and much more!
23 August 2012
Heirloom tomatoes. brown spots in lawns, tender subtropicals, shade lovers, and more!
16 August 2012
Designing mixed planters, early cool-season vegetables, what is a variety, and more!
09 August 2012
August flowers, dividing perennials, pruning evergreens, and more!
02 August 2012
Cherry update, giant pumpkins, flower fertilizers, veg problems, and more!
26 July 2012
Houseplant and lemon problems, fertilizers, dragonflies, comparing crapemyrtles, and more!
19 July 2012
Tomatoes, tomatilloes, low-water lawns, and more!
12 July 2012
Redwood issues, squirrels on tomatoes, taste test (plum vs pluot), shade accents, and more!
05 July 2012
Mixed color planters, weeds in compost, and more!
28 June 2012
Cherry tree problems, vines, jasmine, and more!
21 June 2012
Grass in shade, grapes, aphids on honeysuckle, and morel!
14 June 2012
Lilacs, watering, garden questions, and morel!
07 June 2012
Problems with tomatoes, anthuriums; easy ferns, and morel!
31 May 2012
Crepe murder? And how to build great garden soil!
24 May 2012
Special show: all about tomatoes!
17 May 2012
Cherry fly, cucumbers, hops, sunflowers, and more!
10 May 2012
Impatiens problems, mulch, seaweed, garden books, and more!
03 May 2012
Spring gardening questions: mildew, aphids, tomatoes, and more!
26 April 2012
Planting by seasonal cycles, fungus weather, and more!
19 April 2012
Clematis, April in your garden, identifying cherry trees, and more about tomatoes!
12 April 2012
Tomatoes! and a few listener questions
05 April 2012
Lady Banks rose, citrus alert, and more
29 March 2012
Growing herbs, flowers and bees, Japanese maple questions, and more
22 March 2012
Lois renovates her back yard; caller questions, and much more
15 March 2012
Early season gardening, sustainability, and more!
08 March 2012
Fruit trees from seed, bentgrass, improper pruning problems, and more!
01 March 2012
Early spring questions!
23 February 2012
Winter flowers, fertilizer, drainage and shade, and more!
16 February 2012
Orchids, perennials, and more!
09 February 2012
Fruit tree questions, avocadoes, carpenter bees, and more!
02 February 2012
Attracting birds to the yard, growing nut trees February garden activities, and more.
26 January 2012
Plants from Hawaii, pluots, USDA zones, Lois on birds, and more.
19 January 2012
Miniature fruit trees, moss, starting seeds, easy fruit trees, and more.
12 January 2012
Fruit tree spacing, pruning, and more.
05 January 2012
January gardening: bareroot trees, pruning, and more.

Click here for 2010 and 2011 shows and pictures
Click here for 2008 and 2009 shows and pictures
Click here for 2007 shows and pictures
Click here for 2006 shows and pictures


Special show: All about pruning!
from 31 December 2009
Special show: All about Citrus!
from 24 December 2009
Special show: All about Bulbs!
from 26 November 2009
Whitefly Management excerpt
Don and Lois discuss how to control whiteflies; excerpt from July 21 2011

Featured Links, Plants & Articles

Greg Alder's excellent blog about fruit trees and other gardening topics in Southern California

Current rainfall, flood warnings, and more:

Chilling hours for fruit trees:

Plant ratings for water use are available at

Ongoing assessments at the UC Landscape Plant Irrigation Trials:

California DWR precipitation data
California DWR reservoir storage data
Lake Berryessa lake level updates
March 23 2023:

Another front yard veggie garden!

March 09 2023:

Garden show listener shows off his straw bale garden from 2020!

January 16 2020:

Maidenhair fern
(Adiantum, probably the species
A. capillus-veneris)
in bowl with no drain hole.
Top: April 2019, just potted.
Bottom: January 2020.

January 09 2020:

Praying mantis egg case
most likely a native species
photo from a listener in California

March 21 2019:

Color planting for shade:
Caladium, coleus, fuchsia,
pink polka-dot plant, and
ornamental sweet potato

January 24 2019:

Poa annua
annual bluegrass
A common weed in winter lawns

Some weather sites:
California Nevada River Forecast Center
Interactive weather maps managed by NOAA

Daily Reservoir Storage Summary
State reservoir data managed by
CA Department of Water Resources

Lake Berryessa water level
Monitored by Solano County Water Agency

October 04 2018

Tomato harvest,
early October,
Sacramento Valley CA

August 30 2018

Tomato Champion hybrid,
late August,
Sacramento Valley CA

June 07 2018:

Sun tolerant Japanese maples?
Lakes Nursery
List of Japanese maple varieties
that tolerate more sun

March 22 2018:

March in Montreal....
from Gordon

February 08 2018
The Yard Posts by Greg Alder

A gardener in Ramona
Southern California,
Sunset Zone 20, USDA Zone 9

Current topic:

Erythrina crista-galli
Coral tree
in Capitol Park, Sacramento
Photo by Raymond P, Sacramento

June 1 2017
The Yard Posts by Greg Alder

A gardener in Ramona
Southern California,
Sunset Zone 20, USDA Zone 9

Current topic:

Laburnum anagyroides
Goldenchain tree
from Henry in Michigan

The Laburnum Arbor
at Bayview Farm and Garden,
Whidbey Island, Langley, Washington

April 13 2017:

Syringa 'Tinkerbelle'
Hybrid lilac
(Syringa meyeri 'Palibin' and Syringa pubescens subsp. microphylla 'Superba')

March 09 2017
Henry's indoor citrus under lights

A gardener in Grand Rapids, Michigan
USDA Zone 6b

January 19 2017
The Yard Posts by Greg Alder

A gardener in Ramona
Southern California,
Sunset Zone 20, USDA Zone 9

Some weather sites:
California Nevada River Forecast Center
Interactive weather maps managed by NOAA

Daily Reservoir Storage Summary
State reservoir data managed by
CA Department of Water Resources

Lake Berryessa water level
Monitored by Solano County Water Agency

December 22 2016:

Peaches pruned as hedge,
UC Davis experimental orchards

September 15 2016
Life After Lawn!

A great resource from the UC Davis Arboretum

September 01 2016
Art Shapiro's butterfly tips
for Northern California gardeners

August 18 2016
Whitefly Management excerpt
Don and Lois discuss how to control whiteflies;
excerpt from July 21 2011

Fruit tree quick reference guide

Fruit trees: quick answers

June 16 2016:
Haagen-Dazs Honey Bee Haven:
great resources for bee plants!

About tomatoes!
May 26 2016:
Recent articles about summer vegetables.
Summer veg tips!
About tomatoes!
May 05 2016:

Common tomato diseases

April 07 2016

Fireblight 24 hours after infection

Fireblight later in the season

March 24 2016:

Weather, rainfall, and reservoir links
UC Davis IPM site weather data by station
Chilling hour data
California DWR precipitation data
California DWR reservoir storage data
Lake Berryessa lake level updates

November 19 2015:

Special program interview with
Robert Kourik, author of
Understanding Roots

More information: RobertKourik.com

September 03 2015:

A sampling of smaller tomatoes
heirloom and/or open-pollinated varieties
Clockwise from bottom left:
Principe Borghese
Candy Sweet Icicle
Michael Pollan
Black Sea Man
Amish Gold Slicer
Barry's Crazy Cherry
Black Cherry
August 27 2015:

Protecting a young avocado tree

August 13 2015:

My Top Ten Garden Mistakes

Davis Enterprise link
to Don's garden columns

July 16 2015:

About Davis CA

May 21 2015:

Citrus rootstock fruit

April 30 2015:

Common tomato diseases

February 19 2015:

Prunus blireiana
Flowering plum

Prunus Purple Pony
dwarf redleaf plum

January 22 2015:

Ribes malvaceum
Chaparral currant

Sarcococca ruscifolia
Sweet sarcococca; Victorian box

August 14 2014:

Fred Hoffman's "green halo" watering technique
for young trees during a drought!

July 10 2014:

Male carpenter bee on

June 05 2014:

Phytolacca americana

May 15 2014:

Water efficiency information
from the CA Dept of Water Resources

May 08 2014:

Syrphid fly larva
eating aphids!

Syrphid fly
aka hoverfly!

May 01 2014:

Fireblight on a
calleryana pear

April 24 2014:

Don's clematis growing
on a Japanese maple

February 06 2014:

February Gold daffodil

January 09 2014:

Lecanium scale on pluot

Fruiting spurs on plum

Fruit buds on peach

Fruiting spurs on apricot
December 05 2013:

Dec. 5 short freeze

Citrus leaf miner
November 14 2013:

Citrus leaf miner
November 07 2013
Dept of Water Resources
low-water landscape guide
(pdf, large file!)

Cyclamen persicum
Florist's Cyclamen

October 10 2013:

Eric's deer barriers!

A sampling of Wild Boar Farms tomatoes

August 15 2013
Photo gallery:
Some flowers for August!

Photo captions

July 25 2013:

some vines for shade

July 11 2013

Sunburned peach leaves

leaf disorder on cucumber

Vitex agnus-castis 'Amiguita'
Vitex, Chaste tree
June 27 2013

Lagerstroemia 'Dynamite'
Dynamite crapemyrtle showing
cool weather color change

June 06 2013

Beschorneria yuccoides
Mexican lily, Amole
List of accent plants (pdf)

May 23 2013

Penstemon 'Midnight'

Hydrangea quercifolia
Oakleaf hydrangea

April 04 2013

Fireblight 24 hours after infection

Fireblight later in the season

Comparing wasps and yellowjackets

March 21 2013
Guide to Estimating
Irrigation Water Needs

large pdf file!
Department of Water Resources

March 14 2013
IPM site about soil solarization
Don's long list of drought-tolerant plants!

February 28 2013

Magnolia soulangeana 'Alexandrina'
Saucer magnolia, sometimes called
Tulip tree

Almonds: first varieties in full bloom

February 14 2013
Don's articles about
low-water landscaping

rose seeds on eBay?!?

January 24 2013

Mahonia lomariifolia
blooming in January

fruiting wood on apricot

fruiting wood on apricot

fruiting wood on plum

The Garden Professors
are on Facebook!

Click here for pictures and links from 2012 shows

December 13 2012

Eric's ivy geraniums:
the influence of microclimate!

The Garden Professors
WSU extension blog, lots of great info

December harvest
in the Sacramento Valley