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PlantFiles: Tall Ironweed
Vernonia angustifolia

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Family: Asteraceae (ass-ter-AY-see-ee) (Info)
Genus: Vernonia (ver-NON-ee-uh) (Info)
Species: angustifolia (an-gus-tee-FOH-lee-uh) (Info)

3 members have or want this plant for trade.

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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By bdavtab7
Thumbnail #1 of Vernonia angustifolia by bdavtab7

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Thumbnail #4 of Vernonia angustifolia by onalee

Profile:

1 positive
No neutrals
No negatives

Gardeners' Notes:

RatingAuthorContent
Positive bdavtab7 On Jul 25, 2010, bdavtab7 from Wimauma, FL wrote:

Found these blooming in Citrus Cty. in the pines. Gorgeous.
It was late July in dry upland wooded area.
The butterflies were gorging themselves.
Plants were growing in red, 'Georgia clay'-type soil.

Regional...

This plant has been said to grow in the following regions:

Brooksville, Florida
Inverness, Florida
Mayo, Florida
Saint Petersburg, Florida



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