Vernonia gigantea


Common Name: Tall Ironweed
Plant Type:Herbaceous
Light (original): sun
Light Requirements: Sun, Part Sun, Shade
Height:4 to 6 feet
Width:
Duration:Perennial
Habitat:Prairie
Soil Type:moist to wet, will tolerate moderately dry
Soil Moisture:Dry, Mesic, Wet
Seed Ripens:
USDA Zones:
Flower Colour:purple-pink
Bloom Time:late summer: Aug, Sept. Oct
Comments:Butterfly nectar plant. Very striking architecture and bright magenta flowers.
Germination:Seed will germinate upon being shifted to 70°F after 90-140 days of moist, cold stratification at 40°F.
Germination Notes:
Grow Notes:
Picture Copyright: John Oyston