Ranunculus Ranunculus asiaticus

Ranunculus is a tuberous-rooted herbaceous perennial in the buttercup family (Ranunculaceae), sometimes grown as an annual. The species is native to the areas around the eastern Mediterranean, but most of the plants grown in gardens are cultivars and hybrids. The species epithet is Latin for “Asian.”

Ranunculus hybrids prefer growing in areas with mild winters, dry summers and sandy soil. They do best in medium moisture, in full sun, with excellent drainage. They do not tolerate heavy clay soils and are semi-hardy (incurring injury at temperatures below 28 degrees F) in North Carolina. Plant tubers 2 inches deep and 6 to 8 inches apart, with root claws down, several weeks before the last frost date. Or tubers can be started indoors and planted outside in spring, before the onset of hot summer weather. Deadhead spent flowers to encourage additional blooms. These plants do best in cool spring weather and will go dormant in summer. To save spent plants for next season, dig up the tubers, cut off the tops, and store them in a dry, cool location. 

It blooms in late spring to early summer, producing cup-shaped, poppy-like flowers in a variety of colors. 

Although they are perennial, these plants are often grown as annuals or grown in containers as florist’s plants. In a suitable climate (or in a greenhouse), these plants make spectacular blooms that are useful as cut flowers. It is suitable for an Asian garden, cutting garden or cottage garden. Use as an accent or mass planting in a border or bed.

Diseases, Insect Pests, and Other Plant Problems: Root rot can occur in wet, poorly drained soils.

More information on Ranunculus.