How Does The Dirt Doctor's Sick Tree Treatment Work?
Updated
The Dirt Doctor's Sick Tree Treatment is Howard Garrett's organic protocol for trees that are declining, weak, or growing in soil with poor biological activity. It is not a single product or a one-time spray. It is a sequence: identify why the tree is stressed, rebuild the soil biology around it, then maintain the tree with organic methods instead of synthetic chemicals. The full protocol lives on dirtdoctor.com under the "Sick Tree Treatment" featured guide, alongside the Basic Organic Program and a quick-reference cheat sheet.
What problem it is meant to solve
The treatment targets trees showing general decline rather than a confirmed, specific disease. On the site, the guide is described as a way to "diagnose decline, restore soil biology, and bring weak or ailing trees back with organic methods."
That framing matters. If a tree is failing because of a known pathogen, a physical injury, or a site problem like standing water, the Sick Tree Treatment is a supporting approach, not a diagnosis in itself. It assumes the underlying issue is often the soil — compacted, chemically treated, or low in microbial life — and that fixing the soil gives the tree what it needs to recover.
The logic behind the steps
The protocol follows a soil-first sequence:
- Diagnose the decline. Look at the site and the soil before treating anything. The guide's stated purpose is to diagnose first, so the treatment is aimed at the actual stress rather than applied blindly.
- Restore soil biology. The core of the method is rebuilding the living component of the soil — the organisms that cycle nutrients and support root health. This is the step that separates it from conventional tree care, which tends to feed the tree directly with synthetic fertilizer.
- Support with organic maintenance. Once the soil is working again, the tree is kept on organic practices rather than returned to chemical inputs, which would undo the soil recovery.
The site presents this as part of a larger system. The Sick Tree Treatment sits next to the Basic Organic Program, described as "Howard's foundation for natural land care" covering "soil, plants, and pest management without synthetic chemicals." The tree protocol is essentially that foundation applied to a struggling tree.
Where to find it and what comes with it
On dirtdoctor.com, the Sick Tree Treatment appears as a featured guide with the summary "The full protocol for stressed trees." Around it are related resources you may want open at the same time:
| Resource | What it gives you |
|---|---|
| Sick Tree Treatment | The full step-by-step protocol for stressed trees |
| Basic Organic Program | The underlying soil, plant, and pest approach |
| Cheat Sheet | Quick-reference list of core practices, products, and remedies |
| Online Classes by Howard | Courses on organic land care, soil building, pest management, and natural certification |
| Ask Howard / Podcasts | A way to hear specific cases discussed |
The cheat sheet is described as "a handy Dirt Doctor cheat sheet of core practices, products, and remedies you can use in the garden any day of the year," which makes it the practical companion while you work through the tree protocol.
What to know before you start
A few conditions shape whether this approach fits your situation:
- It is a process, not a spray. Expect soil work and follow-up rather than a single application.
- Diagnosis comes first. The protocol is built around identifying decline, so skipping that step risks treating the wrong cause.
- It is organic by design. The method assumes you are moving away from synthetic chemicals, since those work against the soil-biology goal.
- It is general guidance, not a site inspection. The site offers the protocol and supporting material; it cannot see your specific tree, soil, or climate. For a tree that is valuable, hazardous, or failing fast, a local arborist or extension service is the appropriate check alongside the protocol.
If your tree is declining and you suspect the soil is the weak link, the Sick Tree Treatment is the right entry point on the site — start with the guide, keep the cheat sheet and Basic Organic Program open beside it, and treat the soil before expecting the canopy to recover.