Juncus ensifolius (Flying hedgehogs) produces a compact clump of grass-like foliage and flower stems topped with small, darkest brown, spiky seed heads in late Summer.
Top tip: Can be grown on a shelf as a marginal plant if planted in a basket with the soil just at the waterline. Otherwise plant directly into reliably wet soil.
Height of plant: 5-15cm from crown
Propagation: Seeds readily self-set but small plants are not easy to identify so it may be simpler to divide clumps after flowering.
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 0cm.