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Common Name (s): Giant ironweed is a native herbaceous perennial wildflower in the Asteraceae or daisy family. This plant has a tall narrow habit that appears in the spring. The plant usually grows from 3 to 5 feet tall, but it has been known to grow to a height of 12 feet.
Common Name (s): Ironweed is an herbaceous native perennial wildflower in the Aster family and is found in all areas of NC. It may grow 5 to 8 feet tall with deep purple flowers that appear in clusters from mid-summer to mid-fall on strong stems.
Jan 20, 2024 · When grown under optimal conditions, V. gigantea can reach 10 feet tall. This species is hardy in Zones 5 to 9 and is moderately resistant to powdery mildew. ‘Jonesboro Giant’ is one of the largest cultivars on the market, reaching a mature height of almost 12 feet tall, with rigid, upright stems.
Oct 20, 2023 · Standing 4 to 6 feet tall at maturity, ironweed boasts a big garden presence when it begins blooming in late summer. That's because clusters of bright purple flowers decorate its tall stems for 6 weeks or more at the end of the growing season.
About 17 species of ironweed are recognized in North America, mostly found in the southeast and Puerto Rico. This ironweed is 1 to 3 meters (3.3 to 9.8 feet) tall. The stem is rigid mostly smooth, sometimes with a few silky white hairs near the leaf bases.
As a tall, narrow plant, Giant Ironweed is suited for the back of the border or tight spaces and grows well in the native meadow garden and along ponds and streams. Grows up to 5-8 ft. tall (150-240 cm) and 3-6 ft. wide (90-180 cm).
As a tall, narrow plant, Tall Ironweed is suited for the back of the border or tight spaces and grows well in the native meadow garden. It is a good choice for rock gardens, butterfly gardens or dry sandy perennial borders where little else will grow. Grows up to 2-4 ft. tall (60-120 cm) and 1-2 ft. wide (30-60 cm).
