Scientific Name
Eranthis hyemalis, E. cilicica
Common Name
Winter Aconite
ERANTHIS
cilicica and hyemalis (Yellow flowers)
A. Flowering Characteristics
Eranthis flowers in early spring (February/March) and plants are 3-5 inches tall.
B. General Characteristics
1. Origin of species: Asia Minor and Europe
2. Common names: Winter Aconite
3. Geophyte organ: Tuber
4. Hardiness type: Hardy III - Injured at temperatures below 5 degrees F (-15C) when planted.
5. Natural reproductive systems and growth and development requirements: Reproduces slowly by seed and tubers and requires a warm (60 to 70F) - cool (28 to 32F) - warm (45 to 60F) annual thermoperiodic cycle.
6. Primary uses: Rock gardens, beds, and woodland gardens.
C. Cultural Information
1. Bulb sizes: 3/3.5, 3.5/4, 4/up cm, in circumference.
2. Planting density: 1 inch apart, 60-100 per sq. ft.
3. Planting depth: 5 inches to base of tuber.
4. Planting time: Fall
5. Perennialization habit: 1990 USDA Climatic Zone 3 with mulch, Zones 4 to 7 without mulch.
6. Light requirements: Full sunlight to PM only or AM only sunlight.
7. Moisture: Tolerates drought, but keep moist during growing season.
8. Animal susceptibility: Not reported.
D. Companion Plants:
Chaenomeles japonica, Forsythia, Jasminum nudiflorum, Vinca minor, Hammamelis.

Eranthis hyemalis

Eranthis hyemalis

Eranthis hyemalis

Holland Technical Service Bulletin Number 37 was prepared for the WWW system by A.A. De Hertogh, L.B. Gallitano, G. Hartley, 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.