Prairie Blazing Star plant profile
Liatris pycnostachya
A perennial flower for full sun.
Last updated .
When to plant
When to plant Prairie Blazing Star
Prairie blazing star is an herbaceous perennial grown for its tall purple flower spikes, blooming in summer (NC State lists a July to August bloom). It prefers full sun and moist, well-drained soil and does not tolerate wet winter soils. The page gives no explicit planting date, so a spring band is approximate.
The calendar shows this cited seasonal window as an approximate band. It does not convert the season into frost-adjusted dates.
Open Prairie Blazing Star in my garden calendarShows the source-backed planting season, not frost-adjusted dates.
Growing conditions
- Sun
- Full sun
- Lifecycle
- Perennial
- Hardiness
- Zones 3 to 9Find my hardiness zone
Common problems
Watch for these
Also watch for: wet winter soil rot, flopping.
Next steps
Continue with Prairie Blazing Star
Evidence trail
Evidence behind this profile
Original extension and institutional publications behind the planting, care, and safety facts on this page.
- Liatris pycnostachya (Prairie Blazing Star, Cattail Blazing Star)
NC State Extension, North Carolina Extension Gardener Plant Toolbox. Supports general reference. Checked 2026-06-18.