The Dirt Doctor Podcast Audio

The July 4, 2026, Dirt Doctor Podcast with Howard Garrett offers his top ten (plus one) favorite ornamental trees for North Texas. He also answers questions sent in by podcast listeners and web site readers to the Dirt Doctor site's "Ask Howard" feature. How to prune and treat tree wounds, spidermites, his Houston gardening book, compost, DE wormer, and Johnson grass are just a few topics he touch...

The June 27, 2026, Dirt Doctor Podcast with Howard Garrett answers questions sent in by podcast listeners and web site readers to the Dirt Doctor site's "Ask Howard" feature. Repelling mosquitoes, how to use the fruit and pecan tree program, and Howard's list of top 10 shade trees for North Texas are in this program. And stay tuned at the end, there is a video of Howard rescuing his dog Elvis from...

The June 20, 2026, Dirt Doctor Podcast with Howard Garrett answers questions sent in by podcast listeners and web site readers to the Dirt Doctor site's "Ask Howard" feature. Everything from how to kill algae in ponds to planting Mexican Buckeye seeds, tomato pollination to repelling mosquitoes is in there this week. And stay tuned at the end, there is a short tour of Howard's garden.  Show Notes:...

The June13, 2026, Dirt Doctor Podcast with Howard Garrett answers questions sent in by podcast listeners and web site readers to the Dirt Doctor site's "Ask Howard" feature. Queries this week on many subjects including what to do about caterpillars and worms, is wood mulch safe, fireblight, grass burs, photinia diseases, and how to use corn meal.  Show Notes: SPCA dogs EFI Newsletter  Cheat Sheet...

The June 6, 2026, Dirt Doctor Podcast with Howard Garrett answers questions sent in by podcast listeners and web site readers to the Dirt Doctor site's "Ask Howard" feature. Lots of questions that came in that way this week, including photos from a listener. He also discusses the Dirt Doctor "Guides" and the reason for several formulas for his Tree Trunk Goop to restore injured trees. Finally, the...

The May 30, 2026, Dirt Doctor Podcast with Howard Garrett answers a few questions sent in by listeners and readers to the Dirt Doctor web site's "Ask Howard" feature. The bulk of the podcast is a discussion of the books he has written to do with landscape design and organic gardening. He updated the current status of the "Cheat Sheet" list of tips he used when he was on the radio show and has cont...

The May 23, 2026, Dirt Doctor Podcast with Howard Garrett continues with answering questions sent in by listeners and readers to the Dirt Doctor web site's "Ask Howard" feature.  Guest on Interview from EarthX: Michelle - Rebel with a Rake (https://www.instagram.com/rebelwitharake/) Advertisers: Douglass King Seed https://www.dkseeds.com/ Summit Chemical mosquito solutions.  https://summitchemical...

The May 16, 2026, Dirt Doctor Podcast with Howard Garrett continues with answering questions sent in by listeners and readers to the Dirt Doctor web site's "Ask Howard" feature. This week covers his continuing sale of art from the former office and gallery space and a discussion of the evolution of the "cheat sheet" of helpful answers that was an appendix of a new (yet unpublished) book. He also d...

A wide-ranging set of questions came in last week for the Question and Answer portion of the May 9, 2026, Dirt Doctor Podcast with Howard Garrett. He spoke his "cheat sheet" of helpful answers, about the benefits of using mosquito dunks and bits, and of various types of pest control. There are paint color recommendations for hiding features in the landscape (fences, utility boxes, even garden furn...

The two main parts of the May 2, 2026, podcast are a tour of Howard's Garden and one of several interviews Howard Garrett conducted in April at the EarthX conference. This week's interview is a discussion with Rainmaker. Earth representative Kevin Hauschel, their VP of Sales and Business Development in North America. The Canadian company offers "transformative water technology that restructures ir...

The biggest part of this week's podcast is a discussion of the Dirt Doctor's "cheat sheet," a multi-page list of the items he was asked about most often on the radio show. The list was there for quick lookup in case he forgot some detail, and it has grown over the years, old things removed, new techniques and products added. Howard also touched on his visit to this year's EarthX conference in down...

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...