Custom Fertilization

Custom Fertilization Programs

Nourishing Your Landscape for Lasting Health and Beauty

Every property is unique — from soil composition and plant species to exposure and environmental stressors. At Emerald Tree & Shrub Care, we don’t believe in “one-size-fits-all” fertilization. Our Custom Fertilization Programs are thoughtfully designed to give your trees, shrubs, and ornamental plantings the exact nutrients they need to thrive, not just survive.

Why Custom Fertilization Matters

Healthy root systems are the foundation of a vibrant landscape. Over time, urban and suburban soils often become compacted, nutrient-depleted, or imbalanced, especially in high-end residential and commercial properties where ornamental plants and mature trees require careful attention.

Standard, generic fertilizer applications can:

  • Fail to address specific nutrient deficiencies
  • Promote excessive, weak growth
  • Stress plants during drought or disease pressure
  • Cause nutrient runoff into waterways

Our tailored approach ensures your landscape receives the right nutrients, at the right time, in the right way.

Our Process:
Science-Based & Property-Specific

1. Property Evaluation & Soil Testing

Our ISA-Certified Arborists and Plant Health Care Specialists begin with a thorough site evaluation and, when appropriate, soil testing to determine nutrient levels, pH balance, organic matter, and soil structure.
→ This diagnostic step allows us to identify hidden deficiencies and environmental challenges.

2. Custom Program Design

Using soil analysis and plant needs, we develop a fertilization plan tailored to your landscape. Programs may include spring root-zone feedings for trees, slow-release granular fertilizers for beds, or organic boosters to improve soil health.

3. Professional Application

Our trained technicians apply fertilizers using deep root injection or other targeted methods to deliver nutrients directly to the root zone, promoting strong, balanced growth without surface runoff.

4. Seasonal Adjustments & Monitoring

We revisit properties throughout the year to adjust programs based on seasonal conditions, drought stress, pest activity, and plant response. Your program evolves as your landscape does.

Types of Fertilization We Offer

  • Deep Root Fertilization – Injecting nutrients into the root zone of trees and large shrubs to promote deep, healthy root systems.
  • Ornamental Shrub & Bed Fertilization – Tailored nutrient blends for hedges, foundation plantings, and specialty ornamentals.
  • Soil Amendment & Organic Boosters – Enhancing soil structure and microbial activity for long-term plant vigor.
  •  pH Balancing Treatments – Correcting acidic or alkaline soils that can limit nutrient uptake.
  • Nutrient Deficiency Corrections – Targeted applications (e.g., iron, manganese) to address chlorosis or other visible deficiencies.

 

Benefits of Emerald’s Custom Fertilization

  • ✔️ Stronger, more resilient root systems
  • 🌿 Healthier, greener foliage and improved flowering
  • 💧 Better drought tolerance and reduced disease susceptibility
  • 🦠 Improved soil biology for sustainable plant health
  • 🌳 Enhanced curb appeal and long-term property value

Ideal for Residential & Estate Properties, Golf Courses, and Corporate Landscapes

From mature specimen trees to delicate ornamental borders, our fertilization programs are trusted by discerning homeowners, property managers, and institutions across Westchester, Fairfield, NYC, and the surrounding areas.

Aerification of Compacted Soils

Compact soil around trees and shrubs limits water infiltration, reduces availability of oxygen to roots, and restricts plant growth. Aeration is a process that opens holes in the soil, allowing oxygen and water to penetrate the soil. By creating more openings and channels, natural root growth is accelerated, improving water and nutrients throughout your landscape.

An expert can determine a regular aeration schedule that can be accomplished through custom-liquid applications or mechanical means. An arborist can also determine when to aerify your lawn as cool-season grasses and warm-season grasses require different treatments during the growing season.

aerification of compacted soils

Mauget Systemic Injection Systems

Mauget systemic injections are important tools that help care for the greens on your property, keeping them healthy and beautiful for years to come. Each year, common threats such as pests can damage the trunk and limbs of trees, preventing new growth and causing serious damage. Systemic tree injections apply pesticides directly into the body of the tree to spread protection from within, minimizing the likelihood of treatments becoming dispersed from the elements.

A Certified Arborist can visit your property and recommend the right options for the variety of trees and pests that are common in your neighborhood. Shortly after, our experts use their wisdom, tools and techniques to apply the injections to protect your plantings.

get property analysis

Custom Blended Deep Root Liquid Fertilization

Emerald treats nutritional deficiencies in your landscape depending on each plant’s particular needs. Both plant tissue and soil samples are taken and tested to determine what nutritional deficiencies exist for a particular plant or plantings.

A custom blend of fertilizer containing macro and micro-nutrients as well as beneficial fungi is then hydraulically injected into the soil profile around the root zone of the plants. This allows for immediate uptake and use by the plant to make the necessary corrections in the deficiencies. A few benefits of custom blended deep root fertilization treatments include:

  • Quick Absorption by the Tree: because treatments are applied in a liquid form, the tree can absorb nutrients quicker than other materials. This method also helps aerate the soil, aiding with the absorption of water and nutrients.
  • Fertilization Created for Specific Tree’s Needs: similar to people, every tree is different and has different needs. Custom blended liquid fertilization allows our arborists to create a formula of nutrients based on the needs of your soil and trees. Our ISA-Certified Arborists can also ensure the correct amount is applied so that your tree develops in a healthy way.
  • More Accurate than Alternative Fertilizers: Deep root liquid fertilization is much more accurate than other forms of fertilizers (e.g. pellets, stakes, etc.). When applied by an expert Arborist, fertilization is applied only where and when it is needed, preventing overdosing.
custom blended deep root liquid fertilization

Transform Your Outdoors with Expert Care

Let our arborists transform your landscape into a thriving, beautiful sanctuary.

Why Choose Emerald

Eco-Friendly Practices

Prioritizing sustainable methods and using organic products that are safe for your family and the environment.

Certified Arborists

Our team consists of certified professionals with extensive knowledge in tree and shrub care, ensuring superior expertise and service.

Customized Care Plans

Personalized care plans tailored to your landscape's specific requirements, ensuring optimal results.

FAQ

Emerald Tree & Shrub Care Company Logo

Frequently Asked Questions

How long have you been in business?

We have been in business since 1996. Founded by ISA Board Certified Master Arborist Steve Farrelly, Emerald Tree & Shrub Care Company provides expert services and care to residential and commercial clients throughout Westchester County, Fairfield County, and areas of New York.

Is Emerald a local company?

Yes. Emerald Tree & Shrub Care Company has offices located in Scarsdale, NY and Stamford, CT. We serve clients residing in Westchester County, Fairfield County, and New York City.

Do I have to be home when you do the work?

In many cases, you do not have to be home when our team is scheduled to complete a job. If you prefer to be home, our team will do our very best to accommodate your request.

Can you provide images of the trees to be trimmed, treated, and maintained?

Yes, we use advanced software that keeps an inventory of our client’s properties. Our Plant Health Care clients receive access to thorough, easy-to-read maps that include a tree inventory, a history of treatments and services, as well as detailed cost breakdowns.

Are the products used for plant health care or pest control hazardous to my children and pets?

At Emerald, we protect the health of your family and landscaping with our conventional and environmentally safe insect control treatments. Additionally, our crews undergo training to ensure we are applying treatments using the most up to date industry standards.

Will heavy equipment be brought onto my property?

With your permission, we may need to bring our equipment onto your lawn to treat or remove trees. If this is the case, we use weight displacement mats that do not compact soil, leaving no evidence that our trucks were on your lawn.

Will you remove debris from the job?

Yes. At Emerald, cleanup is an important component of safety and tree care. Please discuss any questions or concerns with your Arborist Representative prior to beginning work.

Will I need to obtain a permit prior to work being done?

Depending on the area, you may need to obtain a permit. Permits vary from area to area, so please check with your Arborist Representative.

Will you (Emerald) get a permit for me?

Typically, it is the responsibility of the property owner to obtain necessary permits before a job begins. Our experts can advise you on the permits you need.

Can I see the product labels for products you use?

Yes. We provide access to copies of all our product labels. If you have any questions about the products we use, please call us at (914) 350-2224.

View Product Labels

Do you have a question?

We are always here to help!
Call us or send us a message with your question and will we be sure to answer it and support your needs. 

Phone

Westchester

(914) 996-6439 

Fairfield

(203) 422-2441

New York

(718) 363-7253

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