Scientific Name
Ranunculus hybrids
Common Name
Persian Buttercup
RANUNCULUS
Hybrids
(White, yellow, pink, gold, orange, red and mixed color flowers)
A. Flowering Characteristics
Ranunculus hybrids flower in middle spring (April). Plants are about 12 inches tall.
B. General Characteristics
1. Origin of species: Eastern Mediterranean
2. Common names: Persian Buttercup
3. Geophyte organ: Tuberous root
4. Hardiness type: Semi-Hardy - Injured at temperatures below 28 degrees F (-2C) when planted.
5. Natural reproductive systems and growth and development requirements: Reproduces by seed and requires a warm (50 to 65F) - cool (35 to 45F) - warm (50 to 65F) annual thermoperiodic cycle.
6. Primary uses: Beds, borders, rock gardens, and fresh cut flowers.
C. Cultural Information
1. Bulb sizes: 4/5, 5/6, 6/7, 7/up cm, in circumference.
2. Planting density: 4 inches apart, 6 per square foot.
3. Planting depth: 5 inches to the base.
4. Planting time: Fall
5. Climatic zone habit: 1990 USDA Climatic Zone 7 with mulch, Zones 8 to 10 without mulch.
6. Light requirements: Full sunlight only.
7. Moisture: Keep moist during growing season. Tolerates summer drought.
8. Animal susceptibility: Not reported.
D. Companion Plants:
Alyssum, Arabis, Aster, Crocosmia, Dryopteris erythrosora, Coreopsis, Digitalis, Hemerocallis, Hosta, Iris (rhizomatous), Kniphofia (yellow cvs.), Sedum, Stokesia, Zantedeschia, Berberis, Deutzia gracilis, Pittosporum, Rhododendron spp., Spiraea spp., Weigela.

Holland Technical Service Bulletin Number 31 was prepared for the WWW system by A.A. De Hertogh, L.B. Gallitano, M.E. Traer, and A.B. Russell, Department of Horticultural Science, NC State University. The information was obtained not only from original research conducted by the authors but also from databases released by other sources. This Bulletin was published by the International Flower Bulb Center (IBC), Hillegom, the Netherlands on behalf of the Dutch Flower Bulb Industry. Because of the various climates in North America and year-to-year variability of the weather, the IBC cannot and does not accept responsibility for divergent results that may arise using information obtained from this document or site. Photographs copyright @1997 by A.B. Russell and A.A. De Hertogh. Computer programming by Miguel Buendia, graphics by Brad Capel