Unlike its lager counterpart in nature, bonsai has only a very limited amount of soil from which to obtain its food. That is why is is very important to replenishing the soil with nutrients. For a plant the most important mineral are phosphorus, potash, sulphur and nitrogen.
Do not use the same feed all the time during the growing season. You can alternate between powder and liquid versions. Need to be reminded that not all bonsai need the same amount of nutrients. As a general rules young and growing tree need fertilizer more often then the old one. Fast growing tree must be fed more often than the slow growing ones. Most tropical bonsai will grow all year round.
Do not add fertilizer shortly before and during the flowering period. The increased vigor would go into the shoots, and the tree would shed its buds and flowers. Once fruits have formed, resume feeding. Fertilizer nor encouraged after repotting and after root pruning. The root system has regenerate. Suspend feeding for about four to six weeks.
