Description

Vernonia glauca is similar, but shorter, to the more commonly found V. noveboracensis. It grows to a height of 5' and bears large terminal clusters of fluffy purple flowers. The deep-green leaves are lance-like and also attractive. It bears large terminal clusters of fluffy purple flowers. The deep-green leaves are lance-like and also attractive.

Cultivation

Adapted to sunny conditions, Vernonia glauca does very well in a wide variety of soil conditions.It is ideal for perennial flower beds, cottage gardens and sunny borders. Because of its size, it is best planted in the back of a flower bed where it will provide a colorful focal point in late summer through early fall. The height of the plant may be controlled by cutting it back hard in late spring. This will also promote the growth of additional flowering stems. Self seeds readily, and is a good choice for mass roadside plantings, or naturalized in a meadow setting. Blooms mid-July through September. Zones 6-8

Propagation

Propagate by dividing mature clumps in early spring, or from softwood cuttings in late spring. Collected seeds should be sown immediately or they will require cold stratification.

Additional Notes

The common name ironweed, might be attributed to the rigid, tough stems of the plant, as well as the rust color the flowers take on as they fade.