Sparganium ramosum



Green reed with prickly looking flowers. Readily produces seed and is invasive.


Very invasive native with strong, tall, flat, leaves and unusual spiky flower heads.  The flowers are borne in spherical heads looking a bit like green conkers.

Top tip: Can be invasive and bit of a thug with roots strong enough to puncture a liner.  Excellent for reed beds.

Flowers: June-August followed by spiky fruits.

Height: 50-100cm

Propagation: Very easy to divide.

Depth of water over the soil: 10-30cm.

Planting: Plant into 5lt planting crate using heavy garden loam or Westland Aquatic Soil