Tree Fertilizer

Whether you are 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 will find what you need to keep your trees happy, healthy, and strong.
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  1. Image 3 of the PHC 27-9-9 Tree Nutrient Management System with Surfactant, 8 lbs
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    PHC 27-9-9 Tree Nutrient Management System with Surfactant, 8 lbs
    $48.85
  2. Image 1 of the Leonard Iron Chlorosis Tree Spikes, 5-3-3, 15%, 10 Stakes
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    Leonard Iron Chlorosis Tree Spikes, 5-3-3, 15%, 10 Stakes
    $20.90
  3. Image 0 of the Leonard Fertilizer Tablets for Fruit and Nut Trees 28-8-4 Controlled Release 24 Months 19
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    Leonard Fertilizer Tablets for Fruit and Nut Trees 28-8-4 Controlled Release 24 Months 19
    $85.75
  4. Image 2 of the Atrimmec Growth Regulator For Plants and Trees 1 Quart Concentrate
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    Atrimmec Growth Regulator For Plants and Trees 1 Quart Concentrate
    $159.30
    $145.17
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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.