Fertilizers & Treatments

Fertilizers & Treatments

Whether you're looking to have the perfect lawn or plant a large garden that thrives with a minimal amount of effort, A.M. Leonard has the fertilizers and treatments you need, including slow-release and organic fertilizers and rooting hormones.

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Items 25-48 of 55

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  1. Image 1 of the HyR BRIX Lawn Fertilizer 50 Pound Bag
    Rating:
    93%
    Lawn Fertilizer, 22-7-7, 45lb Bag by HyR BRIX
    $65.95
  2. Image 1 of the Fairlawn Blue and Rye Mix 5 Lb Bag
    Rating:
    100%
    Lawn Seed, Blue and Rye Mix, 5lb Bag by Fairlawn
    $32.95
  3. Image 1 of the Florikan® 17-5-11 NPK Max, 140-Day Formula
    Rating:
    95%
    NPK Max 17-5-11 Fertilizer, 140-Day Formula by Florikan
    $126.95
  4. Image 1 of the Leonard 15-7-6 Tree Food for Trees and Shrubs, Box of 40 Stakes
    Rating:
    100%
    Fertilizer Stakes, 15-7-6 Formula for Trees and Shrubs, Box Of 40 Stakes by A.M. Leonard
    $55.95
  5. Image 1 of the The Andersons® 18-24-12 Starter Turf Fertilizer, 50lb Bag
    Rating:
    100%
    Starter Turf 18-24-12 Fertilizer, 50lb Bag by The Andersons
    $91.92
  6. Image 1 of the Osmocote 18 6 12 Slow Release Fertilizer
    Rating:
    100%
    Osmocote 18-6-12 Slow-Release Fertilizer Lo-Start 50#
    $147.95
  7. Image 1 of the Leonard 8-16-16 Tree Food for Fruit and Ornamental Trees, Box of 40 Stakes
    Rating:
    100%
    Fertilizer Stakes, 8-16-16 Formula for Fruit and Ornamental Trees, Box Of 40 Stakes by A.M. Leonard
    $59.95
  8. Image 1 of the Grotab 3-in-1 Premium Plant Starter (12-8-4)
    Rating:
    100%
    Grotab 3-in-1 Premium Plant Starter (12-8-4)
    $55.95
  9. Image 1 showing grouping of Wilt Pruf products.
    Rating:
    96%
    Wilt-Pruf Anti-Transpirant Spray
    $26.95
  10. Image 1 of the Florikan 20 4 9 NPK Plus 180 Day Formula
    Rating:
    100%
    Fertilizer, 20-4-9 NPK Plus, 180-Day Formula, 50lb Bag by Florikan
    $141.95
  11. Image 1 of the Moisture-Loc Anti-Transpirant Spray
    Rating:
    100%
    Moisture-Loc Anti-Transpirant Spray
    $83.95
  12. Image 2 of the PHC ROOTS Plant Food with Microbes, 7-7-7, 40lb Bag
    Rating:
    100%
    Fertilizer/Plant Food, 7-7-7 NPK with Microbes, 40lb Bag by PHC
    $85.95
  13. Image 1 of the ROOTS Healthy Start Advanced 3-4-3
    Rating:
    100%
    Healthy Start Advanced MRT Fertilizer, 3-4-3 with Mycorrhizal Fungi, 25lb Bag by Roots
    $65.14
  14. Image 1 of the The Andersons 22-0-4 Turf Fertilizer with Trimec Post-Emergent Herbicide, 40lb Bag
    Rating:
    100%
    Fertilizer, 22-0-4 Turf Fertilizer with Trimec Post-Emergent Herbicide, 40lb Bag by The Andersons
    $49.05
  15. 604WW Image 1 of 3. Wiggle Worm Soil Builder with Earthworm Castings 30lb Bag
    Rating:
    100%
    Wiggle Worm Earthworm Castings 30lb Bag
    $41.95
  16. Image 1 of the Moisture-Loc Anti-Transpirant Spray 1 Gallon
    Rating:
    100%
    Moisture-Loc Anti-Transpirant Spray, 1-Gallon Bottle
    $83.95
  17. Image 1 of the Neptunes Harvest Organic Fish and Seaweed Blend Fertilizer
    Rating:
    100%
    Organic Fish and Seaweed Blend 2-3-1 Fertilizer by Neptune's Harvest
    $24.95
  18. Image 1 of the HyR BRIX Organic Vegetable Fertilizer 50 Pound Bag
    Rating:
    100%
    Organic Vegetable Fertilizer, 45lb Bag by HyR BRIX
    $64.95
  19. Image 2 of the Anderson's All Purpose Fertilizer, 18-6-12
    Rating:
    100%
    Fertilizer, 18-6-12 All-Purpose Formula by The Andersons
    $102.27
  20. Image 1 of the Grotab 3-in-1 Premium Plant Starter (12-8-4), 100 Tabs
    Rating:
    100%
    Premium 3-in-1 Plant Starter Tablets, 12-8-4 NPK, Tub of 100 Tabs by Grotab
    $55.95
  21. Image 1 of the Peters Professional Acid Special Fertilizer, 21-7-7
    Rating:
    100%
    Acid Special Fertilizer, 21-7-7 by Peters Professional
    $68.95
  22. Image 2 of the HyR BRIX Sweet Corn Fertilizer 50 Pound Bag
    Rating:
    100%
    Sweet Corn Fertilizer, 45lb Bag by HyR BRIX
    $102.95
  23. Image 1 of the Azomite Organic Trace Minerals 44 lb Bag
    Rating:
    100%
    Azomite Organic Trace Minerals, 44 lb Bag
    $62.95
  24. Neptunes Harvest 5 3 0 Crab and Lobster Shell Meal
    Rating:
    100%
    Neptunes Harvest 5 3 0 Crab and Lobster Shell Meal
    $23.95
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A.M. Leonard knows you want to grow the healthiest and most beautiful plants and lawn possible. When plants are at their healthiest, they reach their full size, greatest strength, and biggest yield. Our fertilizers, treatments, and plant food helps lawns and plants grow big, strong, and green as can be. Healthy plants simply look the best. They have the largest, most beautiful flowers and vibrant green leaves. They are the tallest trees that produce the most and best-tasting fruit. With strong roots and stems, healthy plants are also more resistant to anything that might harm them. No matter if you‘re growing a tree, a vegetable, or a flower, we have the plant food you need.

Slow-release fertilizers such as the Osmocote 14-14-14 are very popular products, offering a wide range of uses from greenhouse to planter and cutting down labor with their time-release formulas. We also carry plant and flower fertilizers including brands such as BioPlex and Grotab, lawn and grass fertilizers, and organic options as well. And when your plants and yards begin to thrive, keep it that way with our herbicides, fungicides, and insecticides.

If you're just getting started or preparing for your next task, we carry a range of greenhouse supples including grow lights and seed starting supplies, as well as nursery supplies including a variety of pots and ground cover options.