ironweed (Vernonia 'Southern Cross') plant — close-up photo
Easy to grow

ironweed

Vernonia 'Southern Cross'

Overview

Ironweed (Vernonia 'Southern Cross') is a perennial flower native to eastern North America. It is a tall, upright plant, growing up to 5 feet high with large, purple-violet flower heads that appear from August to October. The foliage is deeply cut and lacy and is a great garden addition for its long-lasting colour. Ironweed is a hardy drought-tolerant plant, happy in full or partial shade and does not require much maintenance. When planted in masses, it provides a beautiful backdrop to the garden, while providing nectar for butterflies and other pollinators.

Care Guide

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Watering

Minimum

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Light

Full sun.

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Temperature

Hardiness zone 4-9.

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Pruning

Best pruned in February, March, April.

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Propagation

Division, Cutting, Layering Propagation, Seed Propagation, Root Cutting

Uses & Symbolism

Attracts: Butterflies.

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