The Dirt Doctor Podcast Audio

The biggest part of this week's podcast is a tour of Howard's art gallery, in preparation for an April 25, 2026 show and sale. The Dirt Doctor non-profit TORC (Texas Organic Research Center) has been supported for many years by the sale of Howard's art. Howard also answers questions about his research into the best formula to duplicate the weedkiller mix in Agralawn Crabgrass Killer, how and when...

Poison ivy and mosquitoes are just two of the topics address in the April 11, 2026, Dirt Doctor Podcast with Howard Garrett. He also answers questions about the benefits of using mosquito dunks and bits, and of using hydrogen peroxide to clean pots for planting if in the past there has been a plant disease. He describes the use of organic fertilizers, how to treat fire ants, and much more. Find th...

The April 4, 2026, Dirt Doctor Podcast with Howard Garrett discusses the benefits of growing and using comfrey, dwarf white clover as an excellent part of a lawn, lacewings (green and brown), and the Texas Bug Book. He gives detail on proper organic bed preparation with any soil type, using fireplace ashes in the garden, woody vines in trees, and organic non-selective herbicides. Find these subjec...

The March 28, 2026, Dirt Doctor Podcast with Howard Garrett discusses how to manage nutgrass (a sedge), hibiscus, a book recommendation (Bargyla Rateaver's Organic Method Primer), recommended tomato varieties, stink bugs in the house, why you can't grow grass under shade trees, bamboo management, cockroaches, selective organic herbicides, koi pond management, and hydrogen peroxide.   Advertisers:...

The March 21, 2026, Dirt Doctor Podcast with Howard Garrett discusses damage from the recent freeze, how to control grass burs, grassy weeds (rescue grass), dicondra (love it or hate it), Agralawn and the Agralawn recipe, how to germinate tough shelled seeds, and the use of trichogramma wasps, beneficial nematodes, and cornmeal products. Advertisers: Crazy Water is the only mineral water bottled i...

The March 14, 2026, Dirt Doctor Podcast with Howard Garrett offers answers posted by listeners using the "Ask Howard" button on the Dirt Doctor website. Topics include eating flowers grown organically, planting potatoes and asparagus, weed blocking plastics,  tree root flares, arborists, lava sand and gravel, beneficial nematodes, dog run design, rose rosette, and much more. Show Notes March 14, 2...

The March 7, 2026, Dirt Doctor Podcast with Howard Garrett offers answers posted by listeners using the "Ask Howard" button on the Dirt Doctor website. Questions include topics such as spring pest control, planting gardens in raised beds, tree pruning, and what products are safe (or not) to use in an organic garden. #OrganicGardening #SoilAmendments #Pruning #PlantSeed #Trees #StumpRemoval #Benefi...

Show Notes: Howard's Tea - Juniper SPCA dog for adoption Q&A Asparagus roots, tree roots, next to houses Dry Molasses Fire Ants Orange Oil Beneficial Nematodes Corn Gluten Meal Henbit Book - Herbs for Texas by Howard Garrett Avoid broadleaf herbicides Don't mulch against trees Calendars What to plant Pruning Freeze Miser Giant Bark Aphid Garlic Pepper Tea Tools Compost Sick Tree Treatment  Adv...

This week's Dirt Doctor podcast with Howard Garrett has more answers to questions sent in by listeners and readers of the website. We are into spring planting and Howard Garrett offers tips about planting from seed, varieties to try, and organic products to use - and avoid. And much more!  Show Notes: Fences - metal, wood, cedar posts Book - Lawn Care (by Howard Garrett) Coffee - mushroom variety...