Arrowhead has wonderful large arrow shaped leaves surround tall stems of pretty white flowers with yellow centres. Dies back completely in November by producing bulbs for overwintering. Ducks love to eat these bulbs, commonly called ‘duck potatoes’
Top tip: Plant into a 10lt planting basket so it doesn’t blow over. Plant as early as possible for strong Spring growth. tolerates variable water depth, so useful where water levels go up and down.
Height of plant: 20-50cm from shoot-root junction.
Propagation: Bulbs can be lifted by gently disturbing the mud with a fork until the bulbs float to the surface.
How to plant: Plant into a 10lt 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, when planted, the shoot-root junction of the plant will be 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 10-30cm.