How do I grow my Cypripedium reginae (Queen Ladys Slipper Orchid)?
Posted by Suttons Staff on 16 July 2013 09:50 am

This easy to grow hardy orchid requires a moist, well drained soil that does not dry out in summer or become waterlogged in winter. The Cypripedium reginae requires some sun for the flowers to develop but must be grown in partial shade to protect from strong midday sun which can damage the plant. In deep shade the plants can fail to flower. 

The plants benefit from having some grit incorporated into the soil to ensure good drainage. Space the plants 60cm (24″) apart and when planting spread out the roots so that the growing tip is about 2cm (¾″) below the surface. Once they have reached a height of 5cm (2″) start feeding every two weeks with a weak solution of a liquid tomato fertilizer continuing until late September. The attractive white and pink flowers appear in June and July. Slugs are one of the main pests and precautions should be taken. Although fully hardy the plants prefer protection from winter rain. 

In containers use one large enough to allow the roots to spread. Use a multipurpose compost that has John Innes compost included plus additional grit. Plants grown in containers can be moved into a cold greenhouse or frame from November to late February.  In the greenhouse keep the plants fairly dry over winter watering around the edges rather than over the crown.

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