Ranunculus asiaticus is a herbaceous perennial. There are single and double varieties. It is native to the Eastern Mediterranean, in Southwestern Asia, Southeastern Europe, and Northeastern Africa. Ranunculus asiaticus is part of the Ranunculaceae family of plants. It is also is known as the Persian Buttercup, Turban Buttercup, Persian Crowfoot, or Garden Ranunculus.
It has three-lobed basal leaves whereas the leaves higher on the plant are more divided and hairy like the stems. Ranunculus asiaticus flowers range in color from white to yellow, pink, and red. The flowers appear sometimes several to a stem and have thin crepe-like petals. Ranunculus asiaticus grows to about 24in or 60cm tall. They prefer mild winters and cooler spring and summer. Though they are perennials they are treated as annuals by many gardeners.
Ranunculus asiaticus is a tuberous perennial, they actually grow from corms. The corms have claws at the bottom. The size of the corm correlates to the number of flowers it will produce. . The flowers are cup-shaped and have black centers. It flowers in spring and summer. Plant Ranunculus asiaticus in the sun, in fertile soil, equal parts loam and leaf-mold, and grit. Ranunculus asiaticus does require a dormant season when it should be kept dry.
Propagate Ranunculus asiaticus by seed or divide it in spring or late autumn. Watch out for aphids, slugs, snails, and powdery mildew. Ranunculus asiaticus is also popular as cut flowers and could easily last up to a week. To plant the Ranunculus asiaticus corms soak them in water for an hour or so and plant them about 5cm or 2in deep.