The Ground Orchid (Bletilla striata) is beloved by many gardeners for its light-green lance-like foliage and delicate lavender-purple-pink flowers in April and May. Once rare, the plant is a true terrestrial orchid. It thrives in part shade and moist, rich, well-drained soil, growing to 1-1/2 feet tall and a foot wide. It's good in beds, borders, and containers. Other common names: Chinese Ground Orchid and Hardy Chinese Orchid.