Soil first. Fertilizer second.
Custom-formulated deep-root feeding based on actual lab tests — not a generic bag of NPK and a marketing brochure.
Why we test before we fertilize.
The most common mistake in tree fertilization is treating it like lawn care — show up every spring, broadcast a bag of 16-16-16, send the invoice. That approach works for turf grass, which has a shallow root zone and predictable nutrient demand. It doesn't work for trees.
Trees pull nutrients from a much larger, deeper volume of soil, and the chemistry of that soil changes meaningfully every fifty feet. A property where the front yard is nitrogen-starved can have a back yard that's nitrogen-saturated from years of dog urine, lawn clippings, or run-off from a neighbor's compost pile. Applying the same fertilizer to both wastes money on one side and adds salt damage to the other.
We've watched too many trees get steadily worse on annual fertilization programs because nobody bothered to ask what the soil actually needed. The soil test costs $45. It saves you several hundred dollars in unnecessary applications, and it tells us exactly what to do.
What our fertilization work looks like.
Four approaches we mix and match depending on the tree, the season, and what the soil test tells us.
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Deep-root injection
Liquid fertilizer pressure-injected into the root zone at 6–8 inches deep — where the absorptive roots actually live. Bypasses the lawn entirely.
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Soil amendments
When tests show pH imbalances or mineral deficiencies, we recommend specific amendments instead of generic NPK. Targeted beats broad-spectrum.
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Mycorrhizal inoculations
For newly planted trees and recovering root systems. Helps establish the fungal partnerships trees rely on for nutrient uptake.
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Slow-release granular programs
For mature trees on annual maintenance plans, granular applications timed to the tree's seasonal demand. Less frequent visits, steadier nutrient supply.
Our fertilization process.
Same routine every time. The soil test is non-negotiable.
- 01
Soil test first
Pull a sample, send it to a lab, get back actual pH, nutrient levels, and salt readings. We won't apply anything without numbers.
- 02
Custom formulation
Mix to address what the test shows is missing — and skip what the soil already has plenty of. No one-size-fits-all bag.
- 03
Application
Deep-root injection or granular broadcast depending on the tree, the season, and the property. Done quietly, no equipment trails across your lawn.
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Re-test in 12 months
We follow up annually for trees on a multi-year program — confirming the soil is moving in the right direction.
Fertilization — FAQs
Do trees actually need to be fertilized?
Trees in healthy native soil usually don't. Trees in urban soil — disturbed, compacted, lawn-mowed clippings hauled away — frequently do, especially in newer subdivisions. The honest answer is: get a soil test first. About a third of the time we test, we tell people their soil is fine and they don't need us.
When is the best time to fertilize?
Late fall (after leaves drop, before ground freezes) and early spring are the two best windows. Fall feeding lets the tree store nutrients over winter; spring feeding supports new growth. Midsummer feeding is usually a bad idea — it stresses the tree during drought.
What about lawn fertilizer? Doesn't that feed the trees?
It feeds them, but probably in the wrong ratio and only in the top 2 inches of soil — where almost none of the tree's absorptive roots are. Most lawn fertilizers are also nitrogen-heavy in a way that pushes leaf growth at the expense of root health. Targeted tree fertilization is a different category of work.
Is fertilization a substitute for watering?
Absolutely not. A nutrient-deficient tree that's getting enough water can recover slowly. A well-fertilized tree that's drought-stressed will decline faster than one with no fertilizer at all. Water first, fertilize second.