This blend of organic seaweed and vitamin B1 combine to optimize soil conditions for greater root mass. It can be used as a foliar spray and for root zone applications. Thrive Alive B-1 Red is a powerful preventative and restorative general-purpose plant tonic perfect for all styles of gardening. This product contains nutrients which are cultured in premium quality British Columbian kelp and seaweed that optimize conditions for plant growth, and vitamin B1 to reduce transplant-related issues. Fortified with mineral salt nutrients.