Fertilizing Bonsai, feeding is crucial for trees - Bonsai ...
For plants, they are not. Plants need carbohydrates to feed themselves. Well, potassium enables them to make carbohydrates. It also helps the plant to become disease-resistant, which encourages a healthy life. 4. Calcium. Plants don't need much calcium added to the soil, but you will need to make sure there is enough of it in there.