Dirt Doctor

Landscape Consultant; Arborist; Radio talk show; Columnist Dallas Morning News; Author 15 books; Like my page at

[Dirt Doctor @HowardGarrett]

Howard Garrett this week - Zeolite, Groundcover, Nutsedge, and Tree Issues

In the November 7, 2026, Dirt Doctor Podcast Howard Garrett answers recent questions sent in by viewers including what groundcovers will grow in shade, tree care, and using Zeolite and Beneficial Nematodes in the yard and garden. https://t.co/d3LHcOtNAy

Podcast highlights
#OrganicGardening #LandscapeArchitecture #HowardGarrett #DirtDoctor #LandscapeDesign #Tea #SPCA #AskHoward #BeneficialNematodes
#Zeolite #Leylandcypress #Groundcovers #Nutsedge #FertilizeFruitTrees #NutTrees #TreeIssues #Chemjet

[Dirt Doctor @HowardGarrett]

Don't waste those pumpkins! If the chickens don't want them put them in the compost.

[Dirt Doctor @HowardGarrett]

Leaf management is an important part of the organic program! Keep them on the site and mulch them in. https://t.co/9L9u8SLsTI

[Dirt Doctor @HowardGarrett]

Avoid making this common mistake when It comes to your trees… 🌳🌼 #organicgardening #organicgardener #arboristsofinstagram #homegarden #dallastexas

[Dirt Doctor @HowardGarrett]

Dirt Doctor this week with Howard Garrett - Art Studio and tree health

In the October 17, 2026, Dirt Doctor Podcast Howard Garrett discusses a lot of tree topics, such as proper identification of ash trees in Texas yards (Texas ash - good, Arizona ash - bad) and an innovative treatment he is trying in a damaged oak at his home. Proper pruning is again illustrated, and there are some dog videos (no microphones knocked off in the process).
https://t.co/t2PRhswCYB

Podcast highlights:
- SPCA
- Nellie climbing tree
- Art studio shots
- Baldcypress seed preparation
- Video - tree damage
- Tree injector recommendation
- Bad and good pruning techniques
- Treating tree cavities
- Horseherb
- Emerald ash borers
- Texas ash versus Arizona ash
- Mexican buckeye
- Big leaf maple
- TORC Beck and Bradford

[Restoring Your Faith in Humanity @HumanityChad]

She adopted an abandoned dog .. look at the transformation in just 9 days.

[Dirt Doctor @HowardGarrett]

Dirt Doctor this week with Howard Garrett - Fall Gardening, New Products, Art Studio Tour

The October 10, 2026, Dirt Doctor Podcast with Howard Garrett discusses what you can be doing in your yard and garden this fall, discusses how to build a deck over tree roots, recommends several products, and gives a new tour of the Garrett yard and new Art Studio.
https://t.co/5Rrx5pOshJ

Podcast highlights
- Essential Formulas
- Rocket launch video
- SPCA
- Leyland cypress
- Deck information and tree roots
- Stone deck
- Cheat sheet
- Garlic
- Greenhouse design
- Oxblood/Schoolhouse lily
- Leaf Management
- Fungus treatment in turf
- Silver honey
- fire ants dry molasses
- Mound drench
- Bermuda Grass and Hydrogen peroxide
- New fertilizer products
- Tour of yard and new art studio
- Podcast outtakes

[Dirt Doctor @HowardGarrett]

Dirt Doctor this week with Howard Garrett - Sod, Vines in trees, Fall planting, & SpaceX launch video

The October 3, 2026, Dirt Doctor Podcast with Howard Garrett discusses how to plant solid sod, time to plant garlic (and how), removing vines from trees, and shares a video of a recent SpaceX rocket launch viewed from South Padre Island. https://t.co/vjZi6apP6m

Podcast highlights:

- SPCA
- SpaceX 14 S. Padre Island
- Vines on tree trunks
- Garlic fertilizer
- Bulb Plus product
- Planting garlic
- Dwarf ginkgo
- Organic fertilizer on native plants?
- Leyland cypress
- English ivy - kill with mulch?
- Good watering practices
- Turf - kill grass before putting down sod
- How to plant solid sod
- Photos of South Padre island - several
- Huberman book

[Daily Front @Daily__Front]

I did the same thing as a kid in NY 😂😶‍🌫️

[Dirt Doctor @HowardGarrett]

How much rain did you get? Did your yard breathe a huge sigh of relief? Does the dead lawn now smell like compost? Have cracks in the pavement closed back up?

[Dirt Doctor @HowardGarrett]

Laying solid sod 💦 🌱 #organicgardening #grasstok #grass #dallasgarden #dallastexas

[Dirt Doctor @HowardGarrett]

Cedar good - cypress not so much ✅🪾🚫 I must issue a correction for The Dirt Doctor podcast episode - Fertilzation, Mulch, and Shredded tree trimmings. Did anyone catch it before I did? #organicgardening #arboristsofinstagram #podcastclips #dallasgarden #dallastexas

[Dirt Doctor @HowardGarrett]

Did you know? If you watch the Dirt Doctor podcast on YouTube the notes section has direct links to specific topics discussed. https://t.co/sRzI1FzQJo

[Dirt Doctor @HowardGarrett]

That time of year again. We don't recommend all of these (no to hybrid maples and silver maples) but the colors are something to keep in mind when choosing a tree - if you want one with good color, then buy it this time of year when you can see how it looks.

[Dirt Doctor @HowardGarrett]

Dirt Doctor this week with Howard Garrett - Website, Mexican Maple and Soil Probes

The September 26, 2026, Dirt Doctor Podcast with Howard Garrett discusses changes to the updated website to make searches easier, and discussed several trees including the recommended Mexican mountain maple, holly trees, Mexican plum, and ginkgo trees, and illustrates how to make your own soil probe to take a true reading of your soil moisture levels.
https://t.co/NrdWEZqqpz
Podcast highlights:

- SPCA
- Tour of updated Dirt Doctor website
- Mexican Mountain Maple
- Ginkgo leaves
- Mexican plum
- Kentucky blue grass
- Chinese Pistache trees
- amount of grass seed to plant per acre
- Crabgrass killer recipe
- What evergreens to block view?
- Holly tree care
- Probe - homemade
- Probe - commercial
- Pecan tree organic fertilizer recommendation

[Dirt Doctor @HowardGarrett]

Don't wait till New Year's Eve to tell us your resolutions for the garden next year. What will you do differently if faced with another summer as long and hot as this one?