Black Swallow Greensand Rock Dust (2kg) is a nutrient-rich, iron/potassium silicate rock dust, also known as glauconite, with over 30 trace minerals that promote plant health and vitality. The dist...
Enhance soil health and nutrient uptake with Black Swallow Humic Acid 80% (0-0-5) Powder (1lb). This water-soluble powder is designed to improve soil quality, increase nutrient availability, and st...
Enhance soil quality and boost plant growth with Black Swallow Organic Humic Acid (2kg). This fine granular humic acid is sourced from Leonardite and OMRI listed, making it an ideal soil amendment ...
Black Swallow Huplaso Basalt Rock Dust is a premium soil amendment sourced from mafic volcanic rock in New Brunswick, Canada. Dating back to the Middle Ordovician period, this basalt contains 57 di...
Black Swallow Organic Agricultural Sulfur—90% (1lb) is a highly effective soil amendment designed to lower the pH of alkaline soils, making them more suitable for acid-loving plants. This product h...
Enhance your soil health and boost plant growth with Black Swallow Organic Crustacean Meal. This 5lb bag of organic crustacean meal provides essential nutrients and unique benefits for biological g...
