Pay Attention to Light and Fertilizer
This tree needs direct sun outdoors for about half of each day. If you grow it indoors, pick a spot that's bright and sunny, such as in a window with southern exposure, but protect it from cool drafts during winter. Breadfruit trees usually begin bearing fruit when they're three to five years old and can continue producing for many years, provided they're fertilized to keep fruit coming. Feed a young tree with a balanced fertilizer, such as a 10-10-10 formula, diluted at a rate of 1/4 teaspoon per gallon of water, applied every few weeks during spring and summer. When the tree begins producing fruit, add 4.4 pounds of a granular superphosphate fertilizer to this regimen, applying it once yearly to increase the number and size of fruits, but check product labels for any additional directions when feeding the tree.

Pruning and Problems
An annual pruning helps keep a breadfruit tree vigorous and bearing fruit. Start when the tree's about 4 years old and trim the main, or "leader," stem to encourage branching, wiping the blades with rubbing alcohol between cuts. Continue trimming back side branches each year to encourage bushiness. Mealybugs and soft-bodied scale insects might infest a breadfruit tree, causing young growth to wilt and interfering with fruit production. Control them by spraying the tree with insecticidal soap, diluted at a rate of 6 tablespoons per gallon of water.