Shortly after I started in Bonsai in 1996, I came across this fertilizer at a convention. It is still the original liquid bonsai fertilizer known by many bonsai professionals. It is specially formulated for bonsai because of the limited containment system that bonsai live in and not to burn the roots, but to feed regularly. It is also formulated with micronutrients that most fertilizers lack. Comes in a convenient 8 oz. size and will make many gallons at a rate of 1/4 teaspoon per gallon of water. Great stuff and worth your trying today.