Cypripedium reginae alba
A medium-sized, hardy, deciduous garden orchid, forming large clumps of 50cm tall stems carrying up to seven, lance-shaped, broadly-oval leaves with distinct parallel veins and wavy edge. The leaves are 10-25cm long and 7-15cm wide. Late-flowering, one to three pure white flowers appear on short stems in summer
0.1-0.5 metres
0.1-0.5 metres
| Season | Stem | Flower | Foliage | Fruit |
|---|---|---|---|---|
| Spring | ||||
| Summer | ||||
| Autumn | ||||
| Winter |
Grow in moist, free-draining soil, poor in organic matter; ideally in a sheltered site with dappled or partial shade. Some early morning sun is allowed. Provide an annual winter mulch of fresh leaf mould (oak or beech is preferred). If grown in pots, use 1-part organic matter to 2-parts of inorganic matter in the compost mix. Use gritty sand or crushed clay pebbles to improve drainage, but ensure that plants in pots do not completely dry out during actively growing season. Protect the new shoot from slug damage in spring
Propagate by division from large, established clumps in early spring and replant immediately. Some of the soil from the root ball, which contains beneficial fungi, should be planted with each division
No pruning required, allow foliage to die down naturally
May be susceptible to slugs
May be susceptible to grey moulds