Tanhua, a West Indian cactus, fills the evening air with the vanilla-like scent of its giant blossoms, which collapse at the approach of dawn.
Blossoms remain open only one night.
After they close, they form showy red fruits, about four inches long, which are said to be edible. Giant Darlee flower Gragon Tongue Orchid is her name in Chinese. Groups in the garden and mixed with other flowers in bouquets. Plant bulbs 6 to 8 inches apart and cover with about 3 inches of soil. The fragance of blossoms are stronger during the night.