This semi-succulent plant from Zanzibar in tropical east Africa can form a clump up to 4 feet tall but is usually 3 feet tall. It has attractive rippled, undulating, dark green leaves, smudged with light green and reddish margins. Its very showy white flowers are in rounded clusters that arise on a stout inflorescence from the center of the plant. This plant will tolerate low light levels but grows best and flowers if given bright light and even tolerates full sun. It is hardy to 30 to 32 degrees Fahrenheit. Water it sparingly and not at all as temperatures dip in winter if growing outdoors; it can go months between waterings.