Fertilizers & Treatments

Tree Fertilizer

Whether you’re planting new trees or working to keep older trees healthy, premium-quality tree fertilizer from A.M. Leonard are an essential part of the process. From tree fertilizer tablets to injectable insecticides, here you’ll find what you need to keep your trees happy, healthy, and strong.

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Our customers love our wide variety of Leonard-brand tree fertilizer. These controlled slow-release tablets offer trees and shrubs much-need nutrients at rates of 3-4 months, 12 months, and 24 months. They are the perfect option for professional landscapers and gardeners looking for effective tree fertilization at a great value.

Tree fertilizer and plant food comes in all shapes and varieties, and at A.M. Leonard we stock a diverse selection of fertilizers from the industry’s top brands. Our popular PHC Tree Saver features “survival packs” of mycorrhizal fungi that are a vital part of successful plant growth but are often lacking in more urban environments. For more precise nutrient delivery, check out our inventory of micro-injectable fertilizers, insecticides, and fungicides. These solutions are shot directly into the tree’s vascular system, ideal for high-population urban areas where spraying is not recommended.

Healthy trees are a crucial part of landscapes and ecosystems. Ensure that your trees are fed only the best-quality tree fertilizer with help from A.M. Leonard.