Giant Ironweed, Tall Ironweed, Vernonia altissima
Vernonia gigantea (Giant Ironweed) is a tall, clump-forming perennial boasting dense, broad, flattened clusters of tiny, fluffy, intense purple, finely petaled flowers in late summer and early fall. Each glorious flower head may consist of up to 30-50 flowers. Attractive to birds and butterflies, the blossoms are borne atop stiff, upright stems clothed in lance-shaped, deep green leaves. They give way to fluffy, rusty seed clusters. As a tall, narrow plant, Giant Ironweed is suited for the back of the border or tight spaces and grows well in the native meadow garden and along ponds and streams.
| Hardiness |
5 - 9 |
|---|---|
| Plant Type | Perennials |
| Plant Family | Compositae |
| Genus | Vernonia |
| Common names | Ironweed |
| Exposure | Full Sun, Partial Sun |
| Season of Interest |
Summer (Late) Fall |
| Height |
5' - 8' (150cm - 240cm) |
| Spread |
3' - 6' (90cm - 180cm) |
| Spacing |
60" - 72" (150cm - 180cm) |
| Maintenance | Low |
| Water Needs | Average |
| Soil Type | Chalk, Clay, Loam |
| Soil pH | Acid, Alkaline, Neutral |
| Soil Drainage | Moist but Well-Drained |
| Characteristics | Showy |
| Native Plants | Alabama, Arkansas, Delaware, Florida, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maryland, Michigan, Midwest, Mississippi, Missouri, New York, North Carolina, Northeast, Ohio, Oklahoma, Pennsylvania, South Carolina, Southeast, Southwest, Tennessee, Texas, United States, Virginia, West Virginia |
| Tolerance | Deer, Wet Soil |
| Garden Uses | Beds And Borders, Ponds And Streams, Rain Gardens |
| Garden Styles | Informal and Cottage, Prairie and Meadow |
| Hardiness |
5 - 9 |
|---|---|
| Plant Type | Perennials |
| Plant Family | Compositae |
| Genus | Vernonia |
| Common names | Ironweed |
| Exposure | Full Sun, Partial Sun |
| Season of Interest |
Summer (Late) Fall |
| Height |
5' - 8' (150cm - 240cm) |
| Spread |
3' - 6' (90cm - 180cm) |
| Spacing |
60" - 72" (150cm - 180cm) |
| Maintenance | Low |
| Water Needs | Average |
| Soil Type | Chalk, Clay, Loam |
| Soil pH | Acid, Alkaline, Neutral |
| Soil Drainage | Moist but Well-Drained |
| Characteristics | Showy |
| Native Plants | Alabama, Arkansas, Delaware, Florida, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maryland, Michigan, Midwest, Mississippi, Missouri, New York, North Carolina, Northeast, Ohio, Oklahoma, Pennsylvania, South Carolina, Southeast, Southwest, Tennessee, Texas, United States, Virginia, West Virginia |
| Tolerance | Deer, Wet Soil |
| Garden Uses | Beds And Borders, Ponds And Streams, Rain Gardens |
| Garden Styles | Informal and Cottage, Prairie and Meadow |
How many Vernonia gigantea (Giant Ironweed) do I need for my garden?
| Plant | Quantity | |
|---|---|---|
| Vernonia gigantea (Giant Ironweed) | N/A | Buy Plants |
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Create a membership account to save your garden designs and to view them on any device.
Becoming a contributing member of Gardenia is easy and can be done in just a few minutes. If you provide us with your name, email address and the payment of a modest $25 annual membership fee, you will become a full member, enabling you to design and save up to 25 of your garden design ideas.
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