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Vernonia Species, Ironweed, Missouri Ironweed

Vernoniamissurica

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Vernonia missurica by Weerobin
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Family
Asteraceae (ass-ter-AY-see-ee)
Info
Genus
Vernonia (ver-NON-ee-uh)
Info
Species
missurica (mis-SUR-ee-ka)
Info
Synonym
Vernonia aborigina
Vernonia drummondii
Vernonia michiganensis
Vernonia reedii
Sun Exposure
Full Sun
Foliage
Herbaceous
Height
4-6 ft. (1.2-1.8 m)
Spacing
18-24 in. (45-60 cm)
24-36 in. (60-90 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)
Danger
N/A
Bloom Color
Medium Purple
Bloom Time
Late Summer/Early Fall
Other Details
Category
Perennials
Water Requirements
Requires consistently moist soil; do not let dry out between waterings
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

Unknown - Tell us

Soil pH requirements
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
7.9 to 8.5 (alkaline)
Patent Information

Unknown - Tell us

Propagation Methods
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; stratify if sowing indoors
Direct sow as soon as the ground can be worked
From seed; sow indoors before last frost
From seed; direct sow after last frost
Seed Collecting
Allow seedheads to dry on plants; remove and collect seeds
Properly cleaned, seed can be successfully stored
Regional

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

Longview, Texas

Pearisburg, Virginia

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2 members have or want this plant for trade

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Gardener's Notes:

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J
J
jameso
Longview, TX | August 2011 | positive

This plant is native to east texas. Have seen monarchs
and spicebush swallowtails nector on it frequently.

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