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A. Flowering Characteristics
1. aflatunense flowers in late spring (May) and
lasts 2-3 weeks. Plants are 24-36 inches tall
with large, multi-flowered umbels.
B. General Characteristics
1. Origin of species: Central Asia
2. Common names: Ornamental Onion
3. Geophyte organ: Tunicated bulb
4. Hardiness type: Hardy III - Injured below 5
degrees F (-15C) when planted.
5. Natural reproductive systems and growth and
development requirements: A. aflatunense reproduces
by annual bulb replacement and seed and requires
a warm (68 to 73F) - cool (28 to 32F) - warm (60)
annual thermoperiodic cycle.
6. Primary uses: Beds, rock gardens, meadows,
ground covers, and fresh cut flowers.
C. Cultural Information
1. Bulb sizes: 10/12 and 12/cm, in circumference.
2. Planting density: 3 inches apart, 9 per sq.
ft.
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, Zones 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:
Alyssum, Arabis, Centaurea dealbata, Coreopsis,
Digitalis, Gypsophila paniculata, Hemerocallis
(yellow cvs.), Iris (rhizomatous white and yellow
cvs.), Kniphofia (yellow cvs.), Peonies (white
and yellow cvs.), Verbascum (white cvs.), Rhododendron
spp. (deciduous and evergreen), Cotoneaster, Berberis,
Acer palmatum, Deutzia gracilis, Weigela.
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