Professional Tree Fertilization Services in Maryland
Ed’s Tree Service provides tree fertilization throughout Bethesda, Beltsville, Rockville, Chevy Chase, Silver Spring, and surrounding Maryland communities. Our arborists assess tree health before recommending treatment because proper fertilization starts with accurate diagnosis of what your trees need.
Trees showing yellowing leaves, stunted growth, or declining vigor may have nutrient deficiencies, but these symptoms also indicate drought stress, root problems, diseases, and soil compaction. We evaluate tree health and identify the root cause of problems. When fertilization is the right solution, we treat trees using systemic injection to deliver nutrients directly where they are needed.
We’ve served Maryland since 1987 as a fully licensed (license #557) and insured tree care company. As a woman-owned, family-run business with experienced tree surgeons and arborists on staff, we built our reputation on thorough assessment and effective treatment.
Why Choose Our Tree Care Company Maryland
38 Years Understanding Maryland Trees
We’ve worked with every common tree species in Maryland and understand how local conditions affect tree nutrition. This regional knowledge guides our recommendations and helps ensure trees receive the right treatment for their specific situation.
Honest Assessments
Our assessments sometimes conclude that trees don’t need fertilization. We recommend treatment when we believe it will help, and we’ll let you know when a different approach makes more sense.
Licensed Professionals with Comprehensive Insurance
Co-owner Alice McManus holds our Maryland tree service license #557, and we carry full liability and workman’s compensation coverage. Professional credentials and insurance coverage protect homeowners when tree work is performed on their property.
How Our Fertilization Service Works
We use a systemic injection method, applying Mauget Stemix Plus directly into the base of the tree for fast, targeted nutrient delivery.
- Tree Health Assessment
Our arborists evaluate the tree’s overall condition, foliage color, canopy density, and visible signs of stress or deficiency. We determine whether the tree is a viable candidate for fertilization and whether nutrient deficiency is likely the underlying issue.
- Injection Application
We drill a series of small holes around the base of the trunk and insert Mauget Stemix Plus capsules, which provides nutrients to help promote foliar growth and root development to trees that appear to have nutrient deficiencies or are in decline but could still be savable.
- Nutrient Uptake
Because nutrients are delivered directly into the tree rather than applied to the soil, there is no risk of runoff or leaching into groundwater. The benefits can last anywhere from one to five years.
About Mauget Stemix Plus
Mauget Stemix Plus is a professional-grade, water-based chelated mineral fertilizer designed to promote both foliar growth and root development, and is particularly well-suited for trees in decline that still have recovery potential.
Stemix Plus can help address the following nutrient deficiencies:
- Iron Deficiency
- Magnesium Deficiency
- Nitrogen Deficiency
- Phosphorus Deficiency
- Potassium Deficiency
- Zinc Deficiency
Because the capsules are self-contained and inserted directly into the tree, the application method poses minimal exposure risk to surrounding plants, soil, and groundwater.

Proper Pruning Works with Fertilization for Tree Health
Tree health depends on multiple factors working together. Proper pruning removes dead wood, improves structure, and increases air circulation through the canopy. Combined with appropriate fertilization when needed, pruning helps trees maintain vigor and resist problems.
Our tree pruning and trimming services complement fertilization by removing hazards, improving tree form, and addressing structural issues that fertilization can’t fix.
Not sure whether your trees need pruning, fertilization, or both? Our arborists can assess your trees and recommend the most appropriate care.
Key Takeaways: What to Know About Tree Fertilization in Maryland
Not every struggling tree needs fertilization. Visible symptoms like yellowing leaves, stunted growth, or poor vigor can result from nutrient deficiency, but they can also point to drought, disease, root problems, or other factors. Our arborists evaluate each tree individually to determine whether fertilization is likely to help before recommending treatment.
Fertilization works best for trees that still have recovery potential. This service is best suited for trees showing signs of nutrient deficiency that are in decline but could still be saved with the right care.
Systemic injection delivers nutrients directly where they are needed. Rather than applying fertilizer to the soil surface, we inject Mauget Stemix Plus directly into the tree’s vascular system. This method is effective in situations where traditional soil or foliar feeding would not work.
Frequently Asked Questions
Is my tree a good candidate for this treatment?
Trees that are showing signs of nutrient deficiency but that still appear to have recovery potential are the best candidates. Trees that are already dead or severely deteriorated are generally not good candidates. Our arborists will assess the tree and give you an honest recommendation.
How is the fertilizer applied?
We drill small holes around the base of the trunk and insert Mauget Stemix Plus capsules directly into the wood. The tree absorbs the formula through its vascular system, usually within minutes.
Does this method affect the surrounding soil or groundwater?
No. Because the nutrients are delivered directly into the tree’s vascular system, there is no leaching into the soil or groundwater. This makes it a safe option even in areas near water sources.
Will one treatment fix my tree?
Results vary depending on the severity of the deficiency and the tree’s overall condition. Some trees respond well to a single treatment; others may benefit from follow-up care. Our arborists can discuss what to expect based on your specific situation.
Professional Tree Care Experts Maryland
When your trees show signs of poor growth or declining health, our arborists assess the situation accurately and recommend the most appropriate course of action. We’ve been providing honest tree assessment and effective treatments since 1987.
Whether your trees need fertilization, pruning, or other care, our licensed arborists and tree surgeons are here to help. We’ll always let you know what we think is the right solution for your specific situation.





