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Cyperus ustulatus is a perennial plant that can grow up to 1.20 metres tall.
It has miscellaneous uses.
Lowland near rivers and in damp ground, especially near the coast, on Kermadec, North, South and Chatham Islands[
Prefers a moist sandy loam[
At least some forms of this plant may be hardy in Britain[
The leaves are used for weaving hats, matting etc[
], they are also used for thatching[
The plant has an extensive root system and is used for binding sand dunes[
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. If dividing in the autumn, it is probably better to overwinter the divisions in pots in a greenhouse.