Chinese Ground Orchid are terrestrial orchids that are easy to grow and flower - buy your Chinese Ground orchids online from Tesselaar here. Botanical name: Bletilla striata Plant type: Rhizome Flowering time: Spring. Size (HxW): 30cm x 20cm Depth and spacing: Plant your Chinese Ground Orchids with the rhizome lying flat 5-10cm under the soil surface. Watering: Water freely in summer but keep relatively dry during winter. Frost tolerance: Hardy Flowering time: Spring Planting time: Winter till spring. Soil: Well-drained, moist, humus rich soil. Climate: Cool to Sub-Tropical Aspect: Plant in Full sun to semi shade. Fertilizer: Liquid fertilizer every 2-3 weeks during growing period. After flowering care: Let them die off naturally.