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Vernonia Species, Common Ironweed, Narrow Leaf Ironweed, Tall Ironweed

Vernoniaangustifolia

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Vernonia angustifolia by bdavtab7
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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
Synonym
Vernonia altissima
Vernonia graminifolia
Vernonia recurva
Vernonia scaberrima
Sun Exposure
Sun to Partial Shade
Foliage
Herbaceous
This plant is resistant to deer
Succulent
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)
Danger
Handling plant may cause skin irritation or allergic reaction
Bloom Color
Magenta (pink-purple)
Fuchsia (red-purple)
Blue-Violet
Lavender
Medium Purple
Bloom Time
Mid Summer
Other Details
Category
Perennials
Water Requirements

Unknown - Tell us

Foliage Color

Unknown - Tell us

Where to Grow

Unknown - Tell us

Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds
Bloom Size

Unknown - Tell us

Other details
May be a noxious weed or invasive
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
Self-sows freely; deadhead if you do not want volunteer seedlings next season
Seed Collecting
Allow seedheads to dry on plants; remove and collect seeds
Regional

This plant is said to grow outdoors in the following regions:

Brooksville, Florida

Inverness, Florida

Mayo, Florida

Saint Petersburg, Florida

View this plant in a garden
4 members have or want this plant for trade

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Gardener's Notes:

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2
positives
0
neutral
0
negative
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J
J
JennysGarden_TN
Collierville, TN | November 2023 | positive

This stately perennial grows well in my zone 7b garden. The flowers are very eyecatching. Butterflies and bees won't leave them alone.

B
B
bdavtab7
Wimauma, FL | July 2010 | positive

Found these blooming in Citrus Cty. in the pines. Gorgeous.
It was late July in dry upland wooded area.
The butterflie...Read More

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