New York Ironweed
Vernonia noveboracensis
Last reviewed: June 2026
Light
full sun
Water
medium
Size
48"–96" H × 24"–36" W
Bloom
Jul, Aug, Sep
Native to
DE
Pollinators
bees, butterflies, moths
Vernonia noveboracensis is a tall native perennial that produces clusters of vibrant purple flowers from summer through early fall. This sturdy plant forms upright clumps and can reach 4 to 8 feet in height, making it an excellent choice for back borders or naturalized areas.
In an HOA neighborhood
New York Ironweed takes more care to keep looking intentional in a front yard. Maintenance level: low. Consider it for backyard or mid-zone beds rather than the street edge.
Works well in: backyard only.
- Very tall height appears wild or uncontrolled
- Common name includes 'weed' which raises concerns
- Can look messy when stems die back in winter
Wildlife value
Host plant for American Lady butterfly, Painted Lady butterfly.
The purple blooms are magnets for bees, butterflies, and moths during late summer when many other flowers have faded. Seeds provide food for birds in fall and winter.
Native range data from the USDA PLANTS Database and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
Does New York Ironweed fit your yard? Open it in Pollinator Patch to check it against your sun, soil, and HOA-conscious filters.