Cyperus involucratus is also known as cyperus alternifolius. Grows rapidly to fill the crate to provide interest and focus, so is an excellent sculptural addition for any pond that . .
Top tip: In winter the crown must be grown under the ice line by around 20cm, or can be brought inside to make an ideal evergreen house plant.
Depth of water over the soil: 10-25cm
Planting: Plant into 5/10lt planting crate using heavy garden loam or Westland Aquatic Soil