Roscoea purpurea ‘Wisley Amethyst’
Handsome white and purple orchid-like flowers appear from June and to August. Height 30-40cm.
Collected by plant hunter Frank Kingdon-Ward in 1938. Grown at Wisley and propagated by us in celebration of the bicentenary Royal Horticultural Society.
Roscoea are robust herbaceous perennials in the ginger family. They are suitable for the front of borders, in a rock garden or grown in a container. With orchid-like flowers in the summer they can be found in colours ranging from white and cream through pinks, brick reds and purples. They have tuberous, fleshy roots (similar in appearance to dahlia) that become dormant in late autumn, with strap shaped leaves from April onwards. They are hardy throughout the British Isles.
Roscoea grow well in light, dappled shade. They grow in any moist, free draining soil. They are frost hardy in the garden if planted at the right depth (10-15cm below surface).
Water well after planting and as the plant establishes. Ensure that they don’t suffer from drought in the summer or waterlogging in the winter.