Vitamin B1 (Thiamine) helps your plants use and create carbohydrates so your plants have enough energy to build strong vegetative growth and to power production of flowers and essential oils. It also facilitates your plants’ use of phosphate, which is an essential nutrient that fuels flower growth. B1 activates Systemic Acquired Resistance (SAR), which is the same benefit that happens in humans when a vaccination produces a pre-emptively increased immune response to future infections. What’s more, B1 assists in root development so your plants intake more nutrients faster, and are more resistant to shock, transplanting, cloning.