Jet-Black Raven Zamioculcas zamiifolia Raven™ 'Dowon'

Raven™ ZZ plant is a rhizomatous, evergreen herbaceous perennial in the aroid family (Araceae) native to tropical Africa. The dark, blackish green, pinnate leaves are erect, emerging from a thick, underground rhizome. The species epithet is compounded from the Latin and means “having leaves like Zamia,” which is an unrelated genus. 

This plant has a slow growth rate, reaching 3 feet in height and width. In the landscape, Raven™ ZZ plant needs to be planted in partial to deep shade and highly organic with good drainage. It has bulbous, fleshy rhizomes that give rise to glossy leaves that store water and make it highly drought-tolerant.  As a houseplant, pot it in well-drained potting soil that is watered routinely but allowed to dry out between waterings, as wet feet are not tolerated. Water it only once a month in winter months when it is not actively growing. Water twice monthly in the summer, but only if the soil has dried out completely. Use a balanced liquid houseplant fertilizer once or twice a year. This plant can be treated in much the same way as cactus and other succulent plants. While they will grow in very low levels of light, even in areas with only fluorescent light, they do best with bright indirect sunlight. Scalding and browning of leaves can occur if the plant is placed in direct sunlight. Propagate by division or leaf cutting. This plant has a medium toxicity to cats and dogs.

This cultivar has lime green new growth that turns a dramatic purple-black color as it ages. It stores water in its thick petioles and a tuber-like rhizome, making it an easy to grow houseplant that withstands even dark conditions and neglectful gardeners.

Raven™ ZZ plant is one of the easiest to grow, low-maintenance houseplants and is seen frequently in commercial interiorscapes. In some areas, it may be possible to grow this plant in a container outdoors if it is brought in once the temperature falls below 60 degrees F.  

Quick ID Hints: 

• rhizomatous evergreen, grows up to 3 feet tall
• pinnately compound leaves that emerge lime green and turn almost black
• petiole color can be green, black or purplish.

Insects, Diseases, and Other Plant Problems:  No significant problems, but watch for scale insects.

VIDEO Created by Elisabeth Meyer for "Edibles, Bulbs, and Houseplants," a plant identification course developed in partnership with Longwood Gardens.   

More information on Zamioculcas zamiifolia.