Lava Sand

Lava Sand

Lava sand is derived from pulverized rock. The fertilizer is insoluble; hence adding it to the soil wont affect the pH value. Lava sand resists compression and adds structure to soil, while retaining far less water than compost or clay. During testing, lava sand retains roughly 40% of its own weight in water, compared to 160% for fine-screened compost and 250% for smectite clay. The fertilizer has lower water retention hence it can help your soil dry out quickly. Coarse, quick draining soil is also easier for roots to tunnel through, so adding this lava amendment to your soil can enhance the deep root growth.

Additional Information

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