Now Isolepsis, was Scirpus and is sometimes called the fibre-optic plant. When in flower looks like every stem is tipped with light.
Top tip: Very pretty ground cover and generally evergreen in a sheltered situation, although very hard frosts will kill off some foliage.
Height of plant: 15-20cm from crown
Propagation: Can be divided at any time
How to plant: Plant into a 5lt planting basket using heavy garden loam or Westland Aquatic Soil and place on a shelf in the pond. Fill the planting basket to a depth so that the top of the rhizome at the base of the plant is level with the rim. Hold the plant securely and fill in with soil all around the roots, pressing the soil down very firmly until the planting crate is almost filled to the brim. For aesthetic purposes, the soil can then be top dressed with no more than 1cm of pea gravel.
Recommended planting depth: The planting depth for this plant measured from soil surface to water surface and not including any gravel dressing is 0-10cm.