Family: Asteraceae (ass-ter-AY-see-ee) (Info)
Genus: Vernonia (ver-NON-ee-uh) (Info)
Species: altissima (al-TISS-ih-muh) (Info)
Cultivar: Jonesboro Giant
Category:
Perennials
Height:
6-8 ft. (1.8-2.4 m)
Spacing:
12-15 in. (30-38 cm)
Hardiness:
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
Sun Exposure:
Sun to Partial Shade
Danger:
Handling plant may cause skin irritation or allergic reaction
Bloom Color:
Magenta (Pink-Purple)
Fuchsia (Red-Purple)
Blue-Violet
Violet/Lavender
Purple
Bloom Time:
Mid Summer
Foliage:
Herbaceous
Velvet/Fuzzy-Textured
Other details:
May be a noxious weed or invasive
This plant is attractive to bees, butterflies and/or birds
Self-sows freely; deadhead if you do not want volunteer seedlings next season
This plant is resistant to deer
Soil pH requirements:
5.1 to 5.5 (strongly acidic)
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
Patent Information:
Non-patented
Propagation Methods:
From seed; direct sow outdoors in fall
From seed; stratify if sowing indoors
Seed Collecting:
Allow seedheads to dry on plants; remove and collect seeds
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