Wintering indoors will keep it alive - don't expect it to grow much - but when the weather warms in the spring you'll want to take it outdoors. Jackfruit leaves: Each leaf of the Jackfruit tree is 20 cm long. In the fall, take it back inside so it can stay toasty warm all winter. Jackfruit: The fruit is green in colour, the bulbs inside the fruit are the parts which can be consumed. The giant fruits of the jackfruit (Artocarpus heterophyllus) hang from the branches of the 30- to 70-foot-tall tropical tree. It … Jackfruit can be ripened further indoors if harvested green, and this ensures you get to them before they fall prey to flying foxes, possums and rodents. Just as a side note, seeds can take 3-8 weeks to … Like most of the tropical fruits, cacao (the plant that gives us chocolate) is a novelty indoors.In its native environment, cacao thrives in very humid, but not necessarily very hot, sub-tropical and tropical conditions. Hardy in U.S. Department of Agriculture plant hardiness zones 10 through 12, the evergreen tree is grown as a sun room or greenhouse plant in colder climates. The fruit is large in size. Jackfruit Flowers: The tree has two types of flowers, frequently noticed near terminal branches and foot stalk. They are light yellowish in colour with a sweet smell and taste. It grows into a relatively small (about 20 to 25 feet) tree with deeply gnarled bark and a sometimes twisting trunk.