Professional tree & shrub fertilization

Give your trees and shrubs the nutrients they need with our professional deep-root fertilization service. Formulated for Idaho's alkaline soils, our treatments promote vigorous growth, disease resistance, and vibrant foliage.

Why choose our tree & shrub fertilization service

  • Deep-root injection reaches the root zone directly
  • Formulated for Idaho's alkaline soil conditions
  • Promotes stronger growth and disease resistance
  • Improves color and foliage density
  • Available for residential and commercial properties

Get a free estimate

Or call (208) 504-0843

Our process

What to expect when you choose Lawn Master

01

Property Assessment

We evaluate your trees and shrubs, identifying species and any health concerns.

02

Custom Formulation

Nutrients are selected based on species needs and soil conditions.

03

Deep-Root Application

Fertilizer is injected directly into the root zone for maximum uptake.

04

Follow-Up Care

We provide watering recommendations and monitor results.

Tree & Shrub Fertilization

Your trees and shrubs are a major investment in your property’s curb appeal and value. Unlike lawn grass, trees and shrubs have deep root systems that require a different approach to fertilization.

Why Trees & Shrubs Need Specialized Care

Idaho’s alkaline soils often lack the micronutrients that trees and shrubs need to thrive. Common signs your plants need fertilization:

  • Yellowing leaves (chlorosis) — especially common in Idaho’s high-pH soils
  • Sparse or stunted growth compared to previous years
  • Early leaf drop or poor fall color
  • Increased susceptibility to pests and disease

Deep-Root Fertilization

Unlike surface-applied lawn fertilizer, our deep-root injection delivers nutrients directly to the root zone where trees and shrubs can absorb them:

  • Bypasses alkaline topsoil that can lock up nutrients
  • Reaches the active root zone at 6-12 inches depth
  • Provides immediate availability without runoff or waste
  • Includes iron and micronutrients specifically for Idaho conditions

What We Treat

Our tree and shrub fertilization service covers:

  • Shade trees — maples, oaks, ash, elms, and more
  • Ornamental trees — flowering trees, Japanese maples, dogwoods
  • Evergreens — pine, spruce, fir, arborvitae
  • Landscape shrubs — lilacs, hydrangeas, boxwood, barberry

Residential & Commercial

Whether you have a few backyard trees or acres of commercial landscaping, we can customize a fertilization program for your property. Commercial properties with significant tree and shrub investments especially benefit from regular deep-root feeding to protect and maintain their landscape.

Frequently asked questions

When should trees and shrubs be fertilized?

The best times are early spring (before new growth) and fall (to build winter reserves). We'll recommend the optimal schedule based on your specific plants.

Is this different from lawn fertilization?

Yes. Trees and shrubs have different nutrient needs than turf grass, and deep-root injection delivers nutrients directly to the root zone rather than surface application.

Which trees and shrubs benefit most?

All ornamental trees, shade trees, evergreens, and landscape shrubs benefit from professional fertilization. It's especially valuable for stressed or newly planted specimens.

Ready to get started?

Let us take care of your tree & shrub fertilization needs