Family: Cyperaceae

One of this family of ornamental, rush-like, semi-aquatic plants was used by the ancient Egyptians to make paper. This genus comprises around 600 species of annuals and perennials, the perennials being the most commonly cultivated. They form rosettes of grass-like leaves, with terminal sprays of bisexual flowers borne in spikes, which make interesting cut flowers. They do well as indoor plants or in pots in a sunny pond.

Species

C. involucratus (Synonym: C. alternifolius), umbrella plant, forms a rosette of grass-like leaves, crowned by a whorl of shorter leaves which look like the ribs of an umbrella. The green flower spikes appear in summer. This species requires ample moisture at the roots.

C. papyrus is the papyrus or paper plant of ancient Egypt and may be the bulrush of the Bible. The stems of this elegant plant, which is suitable for shallow ponds, grow to 2.5 m (8 ft) and its leaves take the form of sheaths.

Cultivation

In frost-prone climates, tender species are grown in an intermediate greenhouse or conservatory. Stand the pots in trays of water to keep the compost steadily moist. Outdoors, grow in the moist soil at the edges of a pool. Propagate by division in the spring.

Climate

Zone 10.