The July 18, 2026, Dirt Doctor this week Podcast with Howard Garrett discusses his work on the National Champion Pecan tree in Weatherford, Texas, and he answers a number of viewer's questions. 

National Champion Pecan Tree
Proper tree limb pruning
Velcro ties for garden plants - Uline
Potting soil
Johnson Grass control
Sick Tree Treatment
Garden tour (repeat from June 2025) 

Advertisers:
Crazy Water is the only mineral water bottled in Texas. Rich with Mother Nature-infused minerals, which are more readily absorbed by your body. https://drinkcrazywater.com/ 
Dr. Ohhira probiotics have been part of the Garrett family health regimen for years. https://drohhiraprobiotics.com/dr-ohhira-probiotics/
Essential Formulas  https://essentialformulas.com/explaining-postbiotics/

https://www.dirtdoctor.com

The July 11, 2026, Dirt Doctor Podcast with Howard Garrett discusses a number of organic products he uses all of the time as well as a new sprayer being tested. He answers questions sent in by podcast listeners and web site readers to the Dirt Doctor site's "Ask Howard" feature. This week they include queries about mice and rat repellents, treating lacebugs, fire ants, and scale on crapemyrtle as well as how to mix a good batch of potting soil and where to buy organic products.

Show Notes:
Herb Tea 
SPCA dog
Champion Pecan Tree 
Test Product Kwazar Venus pump
Beneficial Nematodes
Mice and Rats
Guard snake sign
Lacebugs
Mandevilla
Dr. Ohhira Probiotics 
Crazy Water
ph
mound drench
crabgrass killer formula
scale on crapemyrtle
potting soil
tick control
vinegar
sharp shooter shovel
where to buy organic products? 

Advertisers:
Crazy Water is the only mineral water bottled in Texas. Rich with Mother Nature-infused minerals, which are more readily absorbed by your body. https://drinkcrazywater.com/ 
Dr. Ohhira probiotics have been part of the Garrett family health regimen for years. https://drohhiraprobiotics.com/dr-ohhira-probiotics/
Essential Formulas  https://essentialformulas.com/explaining-postbiotics/

https://www.dirtdoctor.com

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 touches on. 

Show Notes:
Herb Tea 
SPCA dog
Cheat Sheet  
Favorite trees
Pruning in summer
Spider mites
PurelyGreen/BioWash https://1stenvirosafety.com/shop
Ants in car
Compost thermometer
tree trunk damage bore holes
DE wormer
Johnson Grass
Koi pond

Advertisers:

Summit Chemical mosquito solutions. https://summitchemical.com/mosquito-solutions/
Dramm Corporation Consumer Products https://www.dramm.com/html/main.isx
Crazy Water is the only mineral water bottled in Texas. Rich with Mother Nature-infused minerals, which are more readily absorbed by your body. https://drinkcrazywater.com/ 
Dr. Ohhira probiotics have been part of the Garrett family health regimen for years. https://drohhiraprobiotics.com/dr-ohhira-probiotics/
Essential Formulas  https://essentialformulas.com/explaining-postbiotics/


https://www.dirtdoctor.com

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 liveoak tree. 


Show Notes:

Herb Tea 
SPCA dog
Elvis climbed tree
Essential Formulas  https://essentialformulas.com/newsletter-subscription/
Advertisers discussed
Cheat Sheet  
Mosquito bucket traps
Murphy's Naturals mosquito spray 
PurelyGreen/BioWash https://1stenvirosafety.com/shop
Fruit and Pecan tree program
Long discussion of Pruning trees - several slides
Best 10 shade trees
Shade trees to avoid 
Hybrid maples, green ash, Chinese pistache, lacebark elm
Cavities in trees - treatment
Hydrogen peroxide on skin spots
ivy on trees
carpenter ants in trees
silica for beds
pecan died
tree trunk damage

Advertisers:

Summit Chemical mosquito solutions. https://summitchemical.com/mosquito-solutions/

Dramm Corporation Consumer Products https://www.dramm.com/html/main.isx

Crazy Water is the only mineral water bottled in Texas. Rich with Mother Nature-infused minerals, which are more readily absorbed by your body. https://drinkcrazywater.com/ 

Dr. Ohhira probiotics have been part of the Garrett family health regimen for years. https://drohhiraprobiotics.com/dr-ohhira-probiotics/

Essential Formulas  https://essentialformulas.com/explaining-postbiotics/


https://www.dirtdoctor.com

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:

Herb Tea: 
SPCA dog
Joint Exercises video URL: https://youtu.be/3_uCIbW_z8s 
Advertisers discussed
Free samples at public speaking events
Cheat Sheet  
Mexican Buckeye pods
How to prepare pods to plant
Mosquito bucket traps
Murphy's Naturals mosquito spray 
BioWash and Cedar Oil - repel mosquitoes on property
Painting metal objects dark color
Go Away Green
BioWash https://1stenvirosafety.com/biowash-soil-amendment
Pest insects SharpShooters 
Mealy bugs
Fleas
Beneficial nematodes
Tomato pollination
Agralawn formula update
Trombone sprayers
screwworms 
Kunifin company https://www.kunafin.com/
Hydrogen peroxide
Fertilizing trees
English Ivy
Kudzu
Weed killer in large areas

Advertisers:

Summit Chemical mosquito solutions. https://summitchemical.com/mosquito-solutions/
Dramm Corporation Consumer Products https://www.dramm.com/html/main.isx
Crazy Water is the only mineral water bottled in Texas. Rich with Mother Nature-infused minerals, which are more readily absorbed by your body. https://drinkcrazywater.com/ 
Dr. Ohhira probiotics have been part of the Garrett family health regimen for years. https://drohhiraprobiotics.com/dr-ohhira-probiotics/

https://www.dirtdoctor.com

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  
Comfrey
Fireblight   
Worms (caterpillars)
Spinosad
Pipevine Swallowtail caterpillars  
Other worms (planarian)
BioWash Purely Green
Tomato diseases
Fleas
Beneficial nematodes
Oranges
Mosquito program traps
Spraying for chiggers
Liquid Cedar
Wood mulch disease spread?
New Red oak - watering 
Beech tree grow in North Texas?
Ornamental tree - Flamethrower Redbud
Corn Gluten meal
Grass burs 
Poor unhealthy soil
Japanese beetles 
Photinia and Sick tree treatment
Tools - Hori Hori knife   

Advertisers:

Summit Chemical mosquito solutions. https://summitchemical.com/mosquito-solutions/
Dramm Corporation Consumer Products https://www.dramm.com/html/main.isx
Crazy Water is the only mineral water bottled in Texas. Rich with Mother Nature-infused minerals, which are more readily absorbed by your body. https://drinkcrazywater.com/ 
Dr. Ohhira probiotics have been part of the Garrett family health regimen for years. https://drohhiraprobiotics.com/dr-ohhira-probiotics/

https://www.dirtdoctor.com

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, there are tips on safety when working with products like hydrogen peroxide.

Show Notes:
SPCA dogs
Poison Hemlock
Hydrogen Peroxide
Sick Tree Treatment
Tree Trunk Goop formulas
Pecan Tree Program 
Pest control via tomato foliage tea
Nightshade family
Scorpions
Gardening Tools (Hori Hori knife)
Calendar and Dirt Doctor Guides
Public speaking events
Garrett Juice
Almond Verbena
Turks Cap
EFI Newsletter (https://essentialformulas.com/newsletter-subscription/)
Book availablity
Cheat Sheet

Advertisers:

Summit Chemical mosquito solutions. https://summitchemical.com/mosquito-solutions/
Dramm Corporation Consumer Products https://www.dramm.com/html/main.isx
Crazy Water is the only mineral water bottled in Texas. Rich with Mother Nature-infused minerals, which are more readily absorbed by your body. https://drinkcrazywater.com/ 
Dr. Ohhira probiotics have been part of the Garrett family health regimen for years. https://drohhiraprobiotics.com/dr-ohhira-probiotics/

https://www.dirtdoctor.com

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 continued to enlarge. 

Show Notes:
SPCA
Cheat Sheet
Essential Formula newsletter recommendation
Axis deer (chital) venison
Fermented foods
Ginkgo tree planting in summer
History of Howard Garrett books

Advertisers:

Summit Chemical mosquito solutions. 
https://summitchemical.com/mosquito-solutions/

Dramm Corporation Consumer Products https://www.dramm.com/html/main.isx

Crazy Water is the only mineral water bottled in Texas. Rich with Mother Nature-infused minerals, which are more readily absorbed by your body. https://drinkcrazywater.com/ 

Dr. Ohhira probiotics have been part of the Garrett family health regimen for years. 
https://drohhiraprobiotics.com/dr-ohhira-probiotics/

https://www.dirtdoctor.com

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.com/mosquito-solutions/

Dramm Corporation Consumer Products https://www.dramm.com/html/main.isx

Crazy Water is the only mineral water bottled in Texas. Rich with Mother Nature-infused minerals, which are more readily absorbed by your body. https://drinkcrazywater.com/ 

Dr. Ohhira probiotics have been part of the Garrett family health regimen for years. 
https://drohhiraprobiotics.com/dr-ohhira-probiotics/

https://www.dirtdoctor.com

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 discussed ants, fleas, flatworms, setting fruit on squash, and the use of sulfur. Find these subjects and more in this week's podcast. 

Guest on Interview from EarthX: Lucas Evans

Advertisers:

Summit Chemical mosquito solutions. 
https://summitchemical.com/mosquito-solutions/

Dramm Corporation Consumer Products https://www.dramm.com/html/main.isx

Crazy Water is the only mineral water bottled in Texas. Rich with Mother Nature-infused minerals, which are more readily absorbed by your body. https://drinkcrazywater.com/ 

Dr. Ohhira probiotics have been part of the Garrett family health regimen for years. 
https://drohhiraprobiotics.com/dr-ohhira-probiotics/

Q&A
Lemon balm and hibiscus flowers in tea
More art for sale after estate sale
Cheat sheet
Planarian worms
Ants in trees
Sick tree treatment
fleas
setting fruits on squash plants
sulfur