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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  1. ICL Osmocote Blend 18-5-8 8-9M Fertilizer - Product on white background - Image 1 of 1
    Osmocote Blend, 18-5-8 Fertilizer, 8 to 9 Months, 50lb Bag
    $112.45
  2. ICL Osmocote Blend, 18-5-12 with Quikstart Fertilizer, 5 to 6 Month - Product on white background - Image 1 of 1
    Osmocote Blend, 18-5-12 with Quikstart Fertilizer, 5 to 6 Month, 50lb Bag
    $112.45
  3. ICL Osmocote Blend 18-5-8 3-Months Fertilizer - Product - 50lb bag - on white background - Image 1 of 1
    Osmocote Blend, 18-5-8 Fertilizer, 3 Months, 50lb Bag
    $89.95
  4. ICL Osmocote Blend 18-5-12 8-9 Month with Quikstart Fertilizer - Product - 50lb bag - on white background - Image 1 of 1
    Osmocote Blend, 18-5-12 with Quikstart Fertilizer, 8 to 9 Month, 50lb Bag
    $89.95
  5. ICL Osmocote Plus Fertilizer Tablets 15-8-11 - Cardboard box of 1,000 tablets on white background - Image 1 of 1
    Osmocote Plus Fertilizer Tablets, 15-8-11 Formulation, 7.5g Tablets, 1,000 Count
    $115.45
  6. Agriform 20-10-5 Fertilizer Tablets, 2 Year Formula, Box
    Rating:
    100%
    Agriform 20-10-5 Fertilizer Tablets, 2 Year Formula, Box
    $114.95
  7. Image 1 of the Terra-Sorb Hydrogel - Fine Grade
    Rating:
    100%
    Terra-Sorb Hydrogel - Fine Grade
    $110.95
  8. Image 1 of the Fairlawn Blue and Rye Mix
    Rating:
    100%
    Fairlawn Blue and Rye Mix
    $32.95
  9. Image 1 of the HyR BRIX Fruit and Berry Fertilizer 50 Pound Bag
    Rating:
    100%
    Fruit and Berry Fertilizer, 45lb Bag by HyR BRIX
    $61.95
  10. 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
  11. Image 1 of the Neptunes Harvest 1 0 2 Organic Kelp Meal 12 Pound Bucket
    Neptune's Harvest 1-0-2 Organic Kelp Meal, 12-Pound Bucket
    $70.95
  12. Image 1 of the Roosters Organic Original Compost 40 Pound Bag
    Rating:
    100%
    Roosters Organic Original Compost, 40 Pound Bag
    $19.95
  13. OL12001- Roadside Grass Seed Mix 25Lb. Image 1 of 1. Showing Roadside Grass Seed Mix 25Lb product label against white background.
    Roadside Grass Seed Mix 25Lb
    $69.95
  14. Image 1 of the Nitrogreen Organic 13 0 0 Fertilizer
    Nitrogreen Organic 13-0-0 Fertilizer
    $15.95
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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.