The plant you will receive is not in bloom. The plant sizes vary and in different stages of development. The plant sizes run from 4 to 6 inches tall. These fragrant blooms are adorned with a crimson or purple veined or blotched lip. The delicate fragrant flowers last about 2 weeks. Dendrobium Kingianum, also known as the pink rock orchid, requires bright light, fresh air, and good humidity. It's a hardy plant that can tolerate a wide range of temperatures.