Adeniums are Caudiciforms with a bulbous caudex, (thick stem) where they store water. They come from eastern Africa and southern Arabia. Adenium like full sun in summer with fertilizer and regular watering. In winter they should be kept above 45°F (7°C) at night with higher day temperature. Water sparingly in winter as they are dormant. Water once a month to keep the roots alive. Some adeniums lose their leaves in winter so don't be alarmed. when choosing an Adenium check the firmness of the stem. If an adenium is put in the ground it can reach 6'tall. In containers they will be much smaller. Adeniums are caudiciforms with a bulbous caudex, (thick stem) where they store water. Although adeniums are succulents they are like tropicals in summer requiring lots of water. In hot weather when they are flowering and have lots of leaves. Be careful though not to give so much water as to rot the roots but water generously and allow to dry out. If they become leggy, cut the stem at a pleasing height forcing it to branch out. Frost sensitive! In winter 2006, I had to cut back many of my adeniums because they were damaged in the frost. Though my decision to cut was based on frost, I learned how forgiving and how beautiful they returned branching out and becoming fuller more interesting plants. Adeniums come from eastern Africa and southern Arabia. Adenium like full sun in summer with fertilizer and regular watering. In winter they should be kept above 45°F (7°C) at night with higher day temperature. Adenium obesum forms a thick, bottle-shaped caudex to a foot or more in diameter with multiple branches. The leaves are glossy deep green, with somewhat wavy margins, depenidng upon the species. Adenium obesum, is sometimes called "Desert Rose" for the profuse flowers that are 2-3" in diameter and occur in bright crimsons, reds or pinks with white centers. Some new hybrids of Adeniums can bloom nearly year round. Natural habitats inlcude Kenya, Tanzania and Arabia. The genus Adenium is related to Oleanders and Pachypodiums. If plant is handled, wash hands thoroughly with soap and water. Refrain from touching eyes. Often used as a bonsai subject. Prefers an extra porous soil. Bright light with ample airflow. Water thoroughly when soil is dry to the touch during warmer weather. Adenium enter dormancy in cold winter months. Requires protection from the frost.