Why Deep Root Fertilization Matters
Even mature trees can show stress from compacted soil, drought, or construction damage. When nutrients don’t reach the root zone, growth slows, leaves yellow, and pests move in. Deep root fertilization solves these problems by improving soil health from the inside out—replenishing nutrients and boosting beneficial microbes that feed roots naturally.
Our Deep Root Fertilization Process
Our process is designed to feed your trees safely and effectively:
- Soil & Root Assessment – We identify signs of stress, compaction, or nutrient deficiency.
- Precision Injection – Using a pressurized soil probe, we inject a custom-blended fertilizer 8–12 inches below the surface for maximum absorption.
- Microbial Support – Our premium blend improves soil structure and stimulates beneficial microorganisms.
- Monitoring & Follow-Up – We track performance and adjust application frequency as needed.
Types of Fertilization Treatments
Evergreen offers two tailored formulations based on your tree’s needs:
Essential Blend – Balanced nutrients for general maintenance and moderate soil improvement.
Premium Blend – A nutrient-rich formula with microbial inoculants for faster recovery and higher stress tolerance.
Our arborists recommend Premium for trees affected by drought, construction, or pest damage.
When to Schedule Deep Root Fertilization
For most trees, one application per year keeps soil in balance. Spring and fall are ideal—spring to support new growth, and fall to prepare for dormancy. Trees showing yellowing leaves, thinning canopies, or slow growth benefit immediately from a targeted treatment.
Why Choose Evergreen for Deep Root Fertilization
Since 1980, Evergreen Tree Care has delivered professional, research-based fertilization programs for both residential and commercial landscapes. Our ISA Certified and TRAQ Qualified Arborists evaluate each tree individually—no generic mixes, no guesswork. We use the right product, depth, and timing to create visible, lasting results.
Trusted Tree Fertilization in Contra Costa County Neighborhoods
Our team performs deep root fertilization for homeowners, HOAs, and municipalities throughout Walnut Creek, Danville, Lafayette, Concord, and the surrounding East Bay. Whether it’s a heritage oak or a young ornamental, every tree gets precise, science-backed care.
- Concord
- Walnut Creek
- Pleasant Hill
- Martinez
- Lafayette
- Orinda
- Danville
- San Ramon
- Discovery Bay
- And More!
Explore More Soil & Root Health Services
Deep root fertilization works best as part of a complete soil improvement plan. Explore related treatments that help your trees thrive from the ground up.
Air Spading
Air spading loosens compacted soil and exposes roots safely for correction or inspection. It’s an ideal pre-treatment before fertilization for compacted or poorly draining areas.
Vertical Mulching
Vertical mulching opens compacted soils and enhances oxygen exchange, allowing your fertilization treatments to penetrate deeper and last longer.
BioHydration Treatments
BioHydration restores balanced soil moisture levels after dry seasons and helps trees absorb nutrients more efficiently.
Tree Growth Regulator (Tree Balance)
Tree Balance improves root density and stabilizes growth following fertilization—enhancing resilience and reducing future stress.
Request a Deep Root Fertilization Quote Today
Give your trees the nutrients they need to stay healthy for decades. Call Evergreen Tree Care at 925-825-8165 or request a consultation online to schedule your deep root fertilization service.
"*" indicates required fields
What happens next
- Site Visit – A Certified Arborist inspects your trees and soil conditions.
- Customized Plan – You receive a detailed proposal outlining products, coverage, and cost.
- Service Completion – Our crew performs the injection using clean, efficient equipment.
- Follow-Up Care – We monitor tree response and recommend next-step PHC treatments.