Canna Bio Rhizotonic is a great choice of organic root stimulant. This natural stimulator is full of rich vitamins, including vitamins B1 & 2 which are essential for promoting healthy a healthy root zone. It can be used to assist young plants which are vulnerable, as it aids in making plants resistant to diseases. Bio Rhizotonic stimulates the production of hormones, producing strong roots, speeding up growth and improving unhealthy or poorly developed plants. Available in 250ml or 1L bottles.