Superthrive is a vitamin and hormone formula that master bonsai artists swear by. Watering recently transplanted seedlings or repotted trees with a Superthrive solution will significantly increase their rate of survival, and noticeably improve their vigor.
Add anywhere from 2 to 10 drops of Superthrive to a liter of water for the first watering after repotting any species of tree. This 4-ounce container is the ideal size for the average enthusiast, as a little goes a long way.