Technical specifications of Bristol Activol Organic Fertilizer Fertilizer type Active Bermiston How to use the crop 12-14 Consumption time for crop During the growing season Frequent use for crop 2 How to consume garden products 12-15 Consumption time for garden product Pre-flowering - before harvest Frequent use of garden products 2 How to use for greenhouse products 2-3 per thousand square meters Consumption time for garden product Before flowering - 20 days before harvest Frequent use for greenhouse products 2