Giant Ironweed (Vernonia Gigantea) is a perennial herb in the Asteraceae family with easy care difficulty. It requires moderate watering and full sun or partial shade light in USDA hardiness zones 4-9. This plant is safe for cats and dogs.
Vernonia gigantea, or Giant Ironweed, is a tall, robust perennial wildflower native to North America, notable for its striking purple flowers and erect, unbranched stems.

Giant Ironweed
Vernonia Gigantea
Vernonia gigantea, or Giant Ironweed, is a tall, robust perennial wildflower native to North America, notable for its striking purple flowers and erect, unbranched stems.
Quick Facts
Safety
Growing Conditions
Care Calendar
Monthly care tasks for Giant Ironweed
Expert Care Tips
Pro tips from botanists and plant experts
Watering Tip
Check soil moisture by inserting your finger 1 inch deep. Water only when the top layer feels dry to prevent overwatering.
Humidity Trick
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Growth Hack
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