The Temperate Database is in the process of being updated, with new records being added and old ones being checked and brought up to date where necessary. This record has not yet been checked and updated.
Common Name: Flatsedge
Cyperus schweinitzii is a Perennial up to 0.75 metres tall.
It has edible and miscellaneous uses.
N. America - Quebec to Saskatchewan and south to Texas and New Mexico.
Sands, beaches and barrens[
]. Sandy soils, especially along the sides of lakes and streams[
We have very little information on this species and do not know if it will be hardy in Britain, though judging by its native range it should succeed outdoors in many parts of this country. The following notes are based on the general needs of the genus.
Prefers a moist sandy loam in a sunny position[
Tuber - raw or cooked[
The leaves are used in basketry and for weaving hats, matting etc[
Seed - surface sow in the spring and keep the compost moist[
]. The seed usually germinates in 2 - 6 weeks at 18°c[
]. Prick out the seedlings into individual pots as soon as they are large enough to handle. Grow on for their first winter in a greenhouse and plant them out in late spring after the last expected frosts.
Division in spring or autumn. Very easy, larger clumps can be replanted direct into their permanent positions, though it is best to pot up smaller clumps and grow them on in a cold frame until they are rooting well. Plant them out in the spring.