Description
Vernonias native to North America are somewhat weedy herbaceous perennials commonly known as ironweed. They are easily grown in average, dry to moist, well-drained soils in full sun.
Vernonia ‘Southern Cross’
(ironweed, Southern Cross Ironweed)
$10.99
Hardiness Zones:
4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a 9bQuick Overview:
Vernonia, or Ironweed, is not commonly offered in the perennial trade, but it is a native perennial worth noting. ‘Southern Cross’ breaks the mold of the typical tall and massive Vernonia species by producing a relatively short, vase-like habit of long, thin leaves, similar in look to Amsonia hubrichtii. Brent Horvath of Intrinsic Perennial Gardens made the discovery of this hybrid Ironweed, found among Vernonia lettermanii seedlings (other parent unknown). The leaves are broader than its parent, up to ½in across. ‘Southern Cross’ can be enjoyed for its attractive, textured deep green foliage throughout the summer. It will extend the season of color when it comes into bloom in late summer, producing an airy dome of small purple flowers, similar in look to Asters. Like Asters, ‘Southern Cross’ prefers to grow in full sun.
Out of stock
Additional information
| Common Name | ironweed, Southern Cross Ironweed |
|---|---|
| Botanical Name | Vernonia 'Southern Cross' |
| Container/Amount | 1 gallon |
| Evergreen or Deciduous | Deciduous |
| Hardiness Zone | 4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b |
| Growth Rate | Fast |
| Light Requirements | Sun |
| Height | 4 to 5' |
| Width | 4 to 5' |
| Soil Condition | Well-drained |
| Water Needs | Average |
| Blooming Period | Late summer into fall |
| Flower Color | purple |
| Fragrance | No |
| Foliage Color | green |
| Deer Resistant | No |
