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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  1. Image 1 of the Osmocote Fertilizer 15-9-12 Slow Release 8 to 9 Months 50lb Bag
    Rating:
    100%
    Osmocote Plus 15-9-12 Slow-Release Fertilizer, 8 to 9 Month, 50lb Bag
    $140.50
  2. Wilt-Pruf Anti-Transpirant Spray
    Rating:
    96%
    Wilt-Pruf Anti-Transpirant Spray
    $19.55
  3. Image 1 of the Terra-Sorb Hydrogel - Fine Grade
    Rating:
    100%
    Terra-Sorb Hydrogel - Fine Grade
    $109.98
  4. Image 1 of the Neptunes Harvest Organic Fish and Seaweed Blend Fertilizer
    Rating:
    100%
    Neptunes Harvest Organic Fish and Seaweed Blend Fertilizer
    $23.76
  5. Neptunes Harvest 5 3 0 Crab and Lobster Shell Meal
    Rating:
    100%
    Neptunes Harvest 5 3 0 Crab and Lobster Shell Meal
    $18.67
  6. Wilt Pruf 5-in-1 Soil and Transplant Enhancer 2 LB. Image 1
    Wilt Pruf 5-in-1 Soil and Transplant Enhancer 2 LB.
    $26.75
  7. Agriform 20-10-5 Fertilizer Tablets, 2 Year Formula, Box
    Rating:
    100%
    Agriform 20-10-5 Fertilizer Tablets, 2 Year Formula, Box
    $99.75
  8. Image 1 of the Agriform Fertilizer Tablets 21 Gram 20-10-5 2 Year Release 500 per Case
    Rating:
    100%
    Fertilizer Tablets, 21g, 20-10-5, 2-Year Release, Case of 500 by Agriform
    $99.75
  9. Image 1 of the Agriform Fertilizer Tablets 10 Gram 20-10-5 2 Year Release 1000 per Case
    Rating:
    100%
    Fertilizer Tablets, 10g, 20-10-5, 2-Year Release, Case of 1000 by Agriform
    $114.90
  10. 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
    $54.45
  11. Image 1 of the Terra-Sorb Hydrogel - Horticultural Grade - Bulk Sizes
    Rating:
    100%
    Terra-Sorb Hydrogel - Horticultural Grade - Bulk Sizes
    $113.75
  12. 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)
    $46.50
  13. Image 2 of the Anderson's All Purpose Fertilizer, 18-6-12
    Rating:
    100%
    Fertilizer, 18-6-12 All-Purpose Formula by The Andersons
    $99.70
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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.