Cyperus haspan
Encyclopedia
Cyperus haspan is a dwarf papyrus sedge
Cyperus
Cyperus is a large genus of about 600 species of sedges, distributed throughout all continents in both tropical and temperate regions. They are annual or perennial plants, mostly aquatic and growing in still or slow-moving water up to 0.5 m deep. The species vary greatly in size, with small species...

 from Mexico
Mexico
The United Mexican States , commonly known as Mexico , is a federal constitutional republic in North America. It is bordered on the north by the United States; on the south and west by the Pacific Ocean; on the southeast by Guatemala, Belize, and the Caribbean Sea; and on the east by the Gulf of...

, has mop heads of flowers in Summer. Not frost hardy in the UK and therefore should be removed from ponds and kept in a frost free greenhouse.

Plant in zones 1,2,3 (marginal).
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