Vernonia, Giant Ironweed


Vernonia gigantea


Vernonia gigantea

The stems of this Giant Ironweed can grow up to 9-15 feet tall. Very appropriately named! Showy inflorescences at top of tall, sturdy stems; large, lance-shaped leaves. The Stem is either green or purplish green colored and can be either hair or pubescent. The leaves are up to 10 inches long and 2½ inches across. Best suited for moist sites. Attractive to butterflies. The seeds are wind-dispersed.

Yearly Foliage: Perennial

Hardiness Zone: 5-10

Light: Full sun to partial shade

Mature Growth: 6-15 feet tall – use in background of perennial bed

Soil: Mesic to moist – pinelands, hammocks, wooded edges

Blooms: Summer to mid-fall

Wildlife: Nectar-insects, Nectar-butterflies, Nectar-bees

Larval Host: Spring Azure

Plant Size when available: Starter Liner, 1 Quart, 1 Gallon, Seeds, and Seed Bombs: Note 1 pound estimated to cover 10 x 10 area and our next batches of Seed Bombs will be available late January 2020. Pre-orders welcome for 2020.

Additional information

Weight 6 lbs
Dimensions 18 × 8 × 8 in

Seeds, Seed Bombs, Starter Liner, 1 Quart, 1 Gallon, Bare Root