Canna Mono 20% K 1 l is a liquid potassium source that is an important source of nutrients for demanding plants. Potassium plays a crucial role in flower development, protein synthesis, carbohydrate production and optimal water supply. The immediately available form of potassium strengthens the cell structure, increases resistance and promotes flowering. Dosage: 1-2 ml/l water. Do not mix with calcium and magnesium.