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.

View as Grid List

Items 1-24 of 46

Set Descending Direction
  1. Agriform 20-10-5 Fertilizer Tablets, 2 Year Formula, Box
    Rating:
    100%
    Agriform 20-10-5 Fertilizer Tablets, 2 Year Formula, Box
    $114.95
  2. Image 1 of the Terra-Sorb Hydrogel - Fine Grade
    Rating:
    100%
    Terra-Sorb Hydrogel - Fine Grade
    $110.95
  3. Image 1 of the Fairlawn Blue and Rye Mix
    Rating:
    100%
    Fairlawn Blue and Rye Mix
    $32.95
  4. 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
  5. 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
  6. 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
    $119.75
  7. 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
  8. 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
  9. 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
  10. Image 1 showing grouping of Wilt Pruf products.
    Rating:
    96%
    Wilt-Pruf Anti-Transpirant Spray
    $26.95
  11. Image 1 of the Moisture-Loc Anti-Transpirant Spray
    Rating:
    100%
    Moisture-Loc Anti-Transpirant Spray
    $83.95
  12. Image 1 of the Terra-Sorb Hydrogel Super Absorbent Fine Grade 10lb Bag
    Rating:
    80%
    Hydrogel Super Absorbent Granules, Fine Grade, 10lb Bag by Terra-Sorb
    $110.95
Page
per page

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.