Also known as Persian buttercup, ranunculus is one of the garden’s most romantic bloomers. Crepe paper petals pile on to create a blossom as exquisite as a rose. ‘Pon-Pon’ ranunculus hail from plant breeder Biancheri Creations near San Remo, Italy, along the Ligurian coast, which is known in the floral world as the “Riviera of Flowers.”