Here are the main care requirements for growing a lychee tree: Plant the tree in full sun, but first acclimate it. Place the tree in well-draining soil that is on the acidic side. Keep the tree on a watering schedule, it will only tolerate some drought. Treat the tree to high humid conditions when possible. Your litchi tree might need acidic soil and weak fertilizer from time to time. You can move your potted litchi tree indoors if it?s too cold outside. This is a great reason to keep your tree in a pot if you live in a cool region. Your litchi tree might never bear fruit if grown indoors in a pot. Most fresh Litchi seeds will germinate in one to four weeks, but some can take up to 6 weeks. Once the glossy, reddish-bronze plant leaves emerge, move the pot to a sheltered, lightly shaded location. In case if you miss this: Protected Cultivation of Vegetables, Flowers, and Fruits. The growing process of Lychee from seed.