The lychee genus needs a well-drained soil, full sun to partial shade, and high humidity for optimal growth. Start by preparing the soil, ensuring it's consistently moist but not soaked. Position the plant with its root collar at soil level, spaced adequately from other plants. Regularly water, particularly in drier months, but avoid overwatering. While these general guidelines apply to the lychee genus, be aware that specific species might have unique needs. Always research and understand the requirements of the particular species you're planting.