Boron (B) is a nutrient used in small amounts to solidify the cannabis plant membranes.

Learn more about nutrients:

• Boron Deficiency In Marijuana Plants
• Absorption Of Water And Nutrients By Marijuana Plants
• Macro Nutrients And Their Effect On Cannabis Plants
• Micro Nutrients And Their Effect On Cannabis Plants

More nutrient elements:

Calcium (Ca) | Carbon dioxide (CO2) | Chlorine (Cl) | Copper (Cu) | Glucose (C6H12O6) | Iron (Fe) | Molybdenum (Mo) | Magnesium (Ma) | Manganese (Mn) | Nickel (Ni) | Nitrogen (N) |  Phosphorus (P) | Potassium (K) | Sulfur (S) | Water (H2O) | Zinc (Zn)