Soil Conditioners & Amendments

Natural mineral used to improve the drainage and aeration of any growing medium. Light weight, expanded volcanic rock. Features high porosity which makes it suitable for rooting cuttings. OMRI (Organic Materials Review Institute) listed.

A naturally occurring mineral that is highly absorbent, lightweight, and an essential part of many professional soil-less growing mixes. CEC (Cation Exchange Capacity) for better fertilizer retention and release when used in potting mix. When used alone, it is ideal for rooting cuttings. OMRI (Organic Materials Review Institute) listed.

Aluminum Sulfate 15% sulfur. Lowers soil pH for acid loving plants like azaleas, camellias, gardenias, hemlock, holly, cedar, blueberry, rhododendron, dogwood; turns hydrangeas blue. Includes easy-to-follow chart. Works in all soil types. Analysis: 0-0-0. 4-pound bag.

Raises soil pH and neutralizes soil acidity quickly. Provides vital calcium to soil and improves soil structure.

Raises soil pH and neutralizes soil acidity quickly. Provides vital calcium to soil and improves soil structure.

Improves pH of acidic soils, replacing important minerals: calcium & magnesium. Speeds bacterial action breaking down organic matter. Corrects one of the moss causing soil conditions. Not for use around acid-loving plants: rhododendrons, azaleas, camellia, blueberries.

All natural source of organic nitrogen and phosphorous. Bone meal helps develop sturdy root systems and stimulates plant growth. Espoma bone meal is an ideal supplement to fertilizers for bulbs, flowers, roses, and perennials. All-natural 100% domestic bone meal, approved for organic gardening. No additives or fillers. USDA (United States Department of Agriculture) Certified Organic.

Safe source of organic nitrogen for flowers, vegetables, trees, and shrubs. Naturally produces more vigorous plants with richer, greener leaves. A time proven remedy for sickly plants. Organic plant food from 100% domestic blood meal. No additives or fillers. USDA (United States Department of Agriculture) Certified Organic.

An enriched source of nitrogen fertilizer. Promotes green color and rapid growth. Analysis: 45-0-0. 4-pound bag.

An enriched source of potassium. Promotes plant vigor and disease-resistance in all flowering plants, shrubs, trees, and vegetables. Analysis: 0-0-60. 6-pound bag.

The finest grade of pelletized, dolomitic limestone available. Adjusts soil pH so plants can get the most from nutrients present. Fine pellets spread easily, react quickly, and do not pose the hazards associated with hydrated lime. 5 Lb. bag. Covers 100 Sq. Ft. USDA (United States Department of Agriculture) Certified Organic.

Garden Gypsum is the finest grade pelletized gypsum available. It is a natural, high purity mineral that provides valuable benefits to soils and plants. While not a fertilizer, it can help increase the productivity of all your gardening efforts. Loosens clay soils and helps improve water and air penetration. Aids in minimizing salt damage to plants. Helps promote root growth and maximizes fertilizer effectiveness. Ecologically safe, nontoxic, nonburning, safe for plants, pets, and people. 6 Lb. (pound) bag. USDA (United States Department of Agriculture) Certified Organic.

Organic, all natural soil acidifier. Turns hydrangeas blue. Lowers the pH of soils and allows acid loving plants to achieve optimum growth. Long-lasting and highly effective. Safe, nontoxic, and safer than aluminum sulfate. Can be used for organic gardening. USDA (United States Department of Agriculture) Certified Organic.

All natural soil conditioner that contains kiln fired slate. When added to soil it permanently improves heavy clay soils, allowing for better drainage, nutrient penetration, and root growth. One time application that will not break down. USDA (United States Department of Agriculture) Certified Organic.

Bone meal naturally rich in calcium and phosphorus. Easy, natural way to add phosphorus whenever your garden plants need it. Traditional plant food used when planting tulips, daffodils, freesia, crocus, anemones, gladiolus, and other bulbs. Use it anywhere plants need phosphorus for strong roots, abundant fruit, and colorful flowers. High grade, organic plant food that is particularly rich in phosphorus and calcium. Because it is not highly processed, it retains much of its original nitrogen for added plant nutrition. 6-12-0 formulation.

Miracle-Gro bone meal is ideal for promoting vigorous root and flower growth for all types of plants. Builds a strong frame starting from the roots. OMRI (Organic Materials Review Institute) listed for organic use.

Miracle-Gro blood meal is ideal for promoting vigorous shoot and flower growth for all types of plants. Organic nitrogen supplement. Start using in the spring, applying every 2 months throughout the growing season. OMRI (Organic Materials Review Institute) listed for organic use.

Reduces water stress in plants and helps protect them in times of hot weather or drought. Ideal for indoor and outdoor plants. Helps prevent over and under watering. Mix with soil to reduce amount of watering needed. Crystals swell to absorb water. 12 oz.

Soil revitalizer that replenishes nutrients into the soil naturally. Renews water retention and restores soil structure. For outdoor use with new or established plants in outdoor containers, raised beds, and in-ground. One bag mixes into (8) 16-inch pots or (1) 4-foot x 4-foot raised bed. Nutrients are derived from feather meal, meat & bone meal, blood meal, compost, mined gypsum, and sulfate of potash. Also contains micro-nutrients including calcium and sulfur. Formulation: 3-1-2. Only for sale in California, Illinois, and Florida.

Soil revitalizer that replenishes nutrients into the soil naturally. Renews water retention and restores soil structure. For outdoor use with new or established plants in outdoor containers, raised beds, and in-ground. One bag mixes into (8) 16-inch pots or (1) 4-foot x 4-foot raised bed. Nutrients are derived from feather meal, meat & bone meal, blood meal, compost, mined gypsum, and sulfate of potash. Also contains micro-nutrients including calcium and sulfur. Formulation: 3-1-2. Not for sale in California, Illinois, and Florida.

White, finely ground sand. Decorative soil cover for container grown plants. Ideal for use indoors or outdoors to help retain soil moisture and reduce compaction caused by frequent watering.

Fast acting lime corrects acidic soils by quickly and effectively raising the soil pH. Ideal for indoor and outdoor plants. AST (advanced soil technology) improves the physical characteristics of the soil for maximum performance.

Multi purpose gypsum loosens clay soils and helps improve water penetration. Helps repair winter salt damage and the effects of animal urine spots. AST (Advanced Soil Technology) improves the physical characteristics of the soil for maximum performance. Easy to apply with any spreader. Ideal for indoor and outdoor plants, lawns, or gardens.

Earthworm castings make the richest, most natural compost available. Naturally non-burning & odorless. Add essential organic matter that increases microbial activity for a living, nutrient rich soil. One application per month. Idea to use for seed starting, indoor & outdoor plants, and gardens (including container gardens), trees & shrubs. Sprinkle a small amount in soil, the castings slowly enrich soil with more nutrients than most yard compost without burning plants.

Fast acting iron plus AST (advanced soil technology) is a premium combination of iron, sulfur, and calcium. Long lasting formula that greens up lawns quickly and is easy to apply with any spreader. Non-staining, non-burning, goes to work quickly. AST improves the physical characteristics of the soil for maximum performance.