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A. Flowering Characteristics
1. sphaerocephalon flowers in early summer (June/July)
and lasts 3-4 weeks. Plants are 30-40 inches tall
with a small, densely packed umbel.
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. ft.
3. Planting depth: 5 inches to base of the bulb.
4. Planting time: Fall
5. Perennialization 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.
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