Dr Greenthumbs Black Basalt Rock Dust - 1KG / 2.5KG / 20KG

Black Basalt Rock Dust formed millions of years ago when hot lava came into contact with large bodies of water. The resulting product is mineral dense and perfect for amending potting soils, lawns, fairways & fruiting/flowering plants.
Packed full of Silica, Calcium & Magnesium for powerful growth! Will help raise and sustain soil pH levels to unlock nutrients and allow for lusher, healthier plant growth!

• Perfect for adding into Coco Coir for Calcium & Magnesium buffering!
• Will raise the pH of Peat Moss to an acceptable range for optimal growth.
• Usage Guide - 100g per m2 or incorporate at 5-10% with your existing fertilizer routine. Apply 30-50g per 30L of potting soil.
• Apply at the start of each season for the best results.
• Typical Analysis - pH 8.5, Silica 43%, Calcium 7%, Magnesium 14%, Potassium 1.7%, Iron 14%, Manganese 0.2%

What's In The Box

• [1] x Dr Greenthumbs Black Basalt Rock Dust - 1KG