Fertilizers & Amendments

The 25 lb Calphos Soft Rock Phosphate bag bridges the gap between a small garden package and the 50 lb farm-size bag. It is well suited to multiple...

MontanaGrow Organic Granular Silicon (25 lb)MontanaGrow™ is a naturally produced and unaltered plant amendment that builds strong roots, stems and ...

Granular Humic Acids is a highly concentrated source of humic substances that is ideal for use on fields, turf, and vegetable gardens. Carefully mi...

Kelp Meal 1-0.1-2 (4 lb Box)Down To Earth Kelp Meal is pure Ascophyllum nodosum seaweed from the clean, cold waters of the Atlantic Ocean. Hand-har...

Gringo Rasta® Cal-Mag from FoxFarm is designed to support strong plant structure and healthy yields by supplying two essential secondary nutrients—...

Formulated to support the needs of home orchards and vineyards, this natural 6-2-4 fruit tree fertilizer delivers balanced nutrition for strong gro...

Are your plants going hungry? Whether you love houseplants, veggies, or flowers, your plants need a balanced diet of micronutrients like Boron, Ma...

2 Pound Bag  AZomite® is an organic trace mineral supplement derived from crushed rocks that contain rich amounts of essential minerals for plant g...

2 Pound Bag Molasses Concentrate + 1% Humic & 2% fulvic Acid Give your plants an attitude with Sassy Lass! Made with pure blackstrap molasses,...

Olivia's Cloning Solution is a concentrated liquid nutrient for newly prepared cuttings. It can be used with soil, propagation cubes, hydroponic sy...

Coconut fiber pellets offer an eco-friendly, sustainable alternative to traditional peat-based pellets, making them an excellent choice for seed st...

Limited Offer: Look for a Buy One Get One 50% Off Deal at Checkout! Amend & monitor your potting soil or worm bin with ease! Mix 1  brick of Ur...

A $72 value for more than 30% off! With the Premium Soil Amendment Bundle, you get: 10 lbs of OMRI-listed microbe-richworm castings (a $37 value) ...

Limestone Microna Ag H2O (5 lb) is a finely milled calcium carbonate soil amendment designed to neutralize acidic soils, improve nutrient availabil...

Monterey Epsom Salts (4 lb)Epsom Salts is a source of magnesium that is essential to plant development. It is required by plants to produce chlorop...

Down To Earth™ Garden lime sweetens your soil (raises the pH) to improve plant growth and maximize fertilizer performance. Natural limestone is gro...

Steamed bone meal is a time-tested organic soil amendment valued for its high phosphorus and calcium content, both essential for strong root develo...

Replenish essential minerals and improve soil health with Gaia Green Glacial Rock Dust (5 lb), a natural soil amendment sourced from ancient Canadi...

Down To Earth™ Bone Meal 3-15-0: Phosphorus-Rich Fertilizer for Healthy Plants Down To Earth™ Bone Meal 3-15-0 is an organic fertilizer that delive...

5 lb Manganese Sulfate for Targeted ApplicationsManganese Sulfate 31% Powder in this 5 lb repack is sized for targeted correction of a confirmed ma...

Crab & Lobster Shell Fertilizer 5-3-0 (4 lb) Neptune's Harvest Crab & Lobster Shell Fertilizer is a dry 5-3-0 plant food made from shell ma...

Down to Earth Citrus Mix 6-3-3 is a granular fertilizer formulated for citrus trees and other fruiting plants. The 25 lb bag is suitable for home o...

Langbeinite is a popular fertilizer, especially where several plant nutrients are needed to provide adequate nutrition. It has an advantage of havi...

Gringo Rasta® Cal-Mag from FoxFarm is a concentrated nutrient supplement that delivers two essential minerals—calcium and magnesium—to promote stro...

Down to Earth’s Fish Bone Meal 4-12-0 is your organic solution for enhancing root strength and flower production in your garden. This marine-based ...

The undisputed champion of organic fertilizers, Bat Guano is rich in nitrogen, phosphorus and potash and provides essential plant nutrition for vig...

Blood Meal 12-0-0 (4 lb Box)A readily available source of nitrogen, Blood Meal is just what you need for rapid green vegetative growth and is great...

Bio-Fish All Purpose 7-7-2 Fertilizer (25 lb)Down To Earth’s Bio-Fish 7-7-2 is an all-purpose, nutrient-rich fertilizer ideal for vegetable gardens...

Compost Maker 4-4-2 (4 lb box)E. B. Stone Compost Maker is a blend of organic ingredients designed to supplement the needs of the home composter. I...