What are the cultural requirements for Zamioculcas?
Zamioculcas is in the plant family Araceae, and its common name is the Aroid palm. According to the Sunset Western Garden Book (2007), this tropical African perennial which resembles a cycad or a palm will grow slowly to 4-5 feet high by 3-4 feet wide. Grown outdoors, it prefers partial to full shade, but indoors you should provide bright filtered light. It should be placed on a tray of moistened pebbles, and misted occasionally. During active growth, keep the soil evenly moist, and give it balanced fertilizer once a month. During the fall and winter months, do not fertilize, and only water when the top inch of soil becomes dry. In summer, the plant may be moved outside to a shady spot. All parts of this plant are poisonous.
You can find discussion among growers of Zamioculcas zamiifolia (sometimes called “the ZZ plant”) on the University of British Columbia Botanical Garden Forum.