Rhododendron lochiae (Australian Rhododendron) is a small shrub that is native to cold climates, reaching a height of 2-5 ft. It can grown in USDA zones 7-9. The plant is best grown in a cold frame, conservatory, or greenhouse in order to maintain temperatures above freezing in the winter. Good drainage is necessary to avoid excess wetness in these sheltered environments. When grown outside in cold regions, the plant should be placed in a sheltered, sunny spot with protection from cold winds. It can withstand temperatures as low as 25°F when planted in the open garden. To keep the plant healthy, water it regularly and feed it with a balanced fertilizer. After flowering, lightly prune the shrub to maintain its shape.
Rhododendron lochiae can also be grown in put. It is not recommended to repot the plant in the winter, but it can be done in the spring. In the summer, prune and pinch the new shoots to promote better shape. It is attractive to butterflies and hummingbirds and is known for its deep red, crimson, and vinous flowers that grow in clusters of up to six.