Drumsticks, Ornamental Onion
- sphaerocephalon (Reddish-purple flowers)
- A. Flowering Characteristics
- A. sphaerocephalon flowers in early summer (June/July)
and lasts 3-4 weeks. Plants are 30-40 inches tall with a small, densely
- B. General Characteristics
- 1. Origin of species: Europe
- 2. Common names: Drumsticks, Ornamental Onion
- 3. Geophyte organ: Tunicated bulb
- 4. Hardiness type: Hardy II - Injured at temperatures
below 14 degrees F (-10C) when planted.
- 5. Natural reproductive systems and growth and development
requirements: It reproduces by annual daughter bulb replacement and underground
bulblets and requires a warm (68 to 73) - cool (28 to 35F) - warm (55 to
65F) annual replacement cycle.
- 6. Primary uses: Borders, beds, fresh and dried cut flowers.
- C. Cultural Information
- 1. Bulb sizes: 4/5 and 5/up cm, in circumference.
- 2. Planting density: 2 to 3 inches apart, 20-25 per sq.
- 3. Planting depth: 5 inches to base of the bulb.
- 4. Planting time: Fall
- 5. Climatic zone habit: 1990 USDA Climatic Zone 3 with
mulch, 4 to 7 without mulch.
- 6. Light requirements: Full sunlight to PM only sunlight.
- 7. Moisture: Tolerates summer drought, but keep moist
during growing season.
- 8. Animal susceptibility: Normally not susceptible.
- D. Companion Plants:
- Centaurea dealbata, Coreopsis, Campanula, Dianthus,
Digitalis, Gypsophila paniculata, Hemerocallis (yellow cvs.), Iris
(rhizomatous white and yellow cvs.), Kniphofia (yellow cvs.), Peonies
(white and yellow cvs.), Verbascum (white cvs.), Buddleia, Hibiscus
syriacus, Acer palmatum, Lagerstroemia.
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.