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Geophyte
Organ: Tuber |
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Light
Requirements: Full-AM Sun |
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Height:
36-84 inches (90-210 cm)
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Flowering
Season: Summer
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Flower
Color: Grown for green leaves
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Planting
Time: Spring |
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Planting
Depth: Cover 4 inches (10 cm)
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Spacing
Between Tubers: 6 feet |
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Hardiness:
Tender I - injured below 68°F (20°C)
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Bulb
Storage: Harvest tubers in fall, dry,
and store at 70-75°F (21-23°C); does not tolerate temperature below
70°F (21°C) |
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Comments:
Edible
tuber; heavy feeders |
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Cultivars:
Black
Magic (60"; purple-black leaves), Illustris
(30"; black leaves with green veins), Jet Black Knight |
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USDA
Hardiness Zones
| 2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
| - |
- |
- |
Sp |
Sp |
Sp |
Sp |
M |
H |
H |
C=container; H=hardy; M=hardy with mulch; Sp=plant spring, harvest
fall; F=fall plant
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List by Scientific
Name | List by Common
Name
Prepared by: Erv Evans,
Consumer Horticulturist, A. A. De Hertogh, Professor, Department
of Horticultural Science
Web Design by: Christa Johnson
© 2000-2003 NC State University
Images © by Erv Evans, A. A. De Hertogh
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