Adenium plants can be propagated from seeds or cuttings. Sow the seeds in a well-drained soil mix and keep them warm and moist until germination. Cuttings should be taken from healthy plants, allowed to dry for a few days, planted in sandy soil and kept in a warm, moist environment until the roots develop.

Yellowing leaves on an Adenium plant can be caused by several factors, including overwatering, insufficient light, or nutrient deficiencies. Ensure the plant is in a well-lit area and the soil is allowed to dry out between waterings. If the problem persists, consider checking for pests or adjusting the fertilizer regimen.