The B1 induces flowering and stimulates resinous oil and fragrance production in a variety of flowers and medicinal herbs. Works well with all popular nutrient lines, and is one of the most powerful bloom enhancers. The B1 induces flowering and stimulates resinous oil and fragrance production in a variety of flowers and medicinal herbs. Works well with all popular nutrient lines, and is one of the most powerful bloom enhancers available.