Purple Giant-hyssop
Agastache scrophulariifolia
Last reviewed: June 2026
Light
full sun
Water
medium
Size
24"–48" H × 12"–24" W
Bloom
Jul, Aug, Sep
Native to
CT, IA, IL, IN and 14 more states
Pollinators
bees, butterflies, hummingbirds
Purple giant-hyssop is a tall native perennial that produces spikes of purple flowers from summer through fall. This upright plant attracts numerous pollinators and works well in perennial borders or naturalized areas.
In an HOA neighborhood
Purple Giant-hyssop is an HOA-friendly choice. Maintenance level: low. Tidiness: 3 out of 5.
Works well in: foundation, mid zone, backyard only.
- Height may appear too wild for formal front yards
- Can look sparse in winter when dormant
Wildlife value
This plant is excellent for pollinators, attracting bees, butterflies, and hummingbirds with its nectar-rich purple flower spikes that bloom for three months.
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 Purple Giant-hyssop fit your yard? Open it in Pollinator Patch to check it against your sun, soil, and HOA-conscious filters.