Vernonia Southern Cross, Ironweed flowers
Vernonia Southern Cross, Ironweed foliage

Vernonia Southern Cross, Ironweed

A beautiful selection of our native Missouri perennial Ironweed, Vernonia, Southern Cross was discovered by Brent Horvath of Intrinsic Perennial Gardens in Illinois. Due to its foliage being broader than most, Brent noticed it stood out from all the other seedlings of Vernonia. Its rich green needle-like foliage adds great texture, setting off all plants around it. In late summer and fall deep purple blossoms appear attracting every butterfly, bee and pollinator in the neighborhood. Makes a lovely cut flower.

It can be used to naturalize areas or in mass plantings. Its lovely foliage and later blooming flowers, appearing when so many plants have finished their show for the year, makes it a valuable addition to the perennial border. Its parentage of Vernonia lettermani gives it the toughness to withstand drought and disease. Very tolerant of dry conditions, yet, can withstand periods of heavy rains and very wet soil.

Very easy to grow in full sun and average to rich soil.

Additional Information

Botanical Name

Vernonia Southern Cross

Common Name

Ironweed

Bloom Color

Purple

Bloom Time

Summer, Late Summer, Fall

Foliage Color

Green

Light Requirements

Sun

Height

36″

Width

36″

Uses

Pollinator Plant, Birds, Bees, Beds, Cut Flower, Hummingbirds, Naturalize

Resistance

Black Walnut, Drought

Soil

Average, Dry

Water Needs

Average

Zone

4-9

Plant Type

Perennial