Chrumps / CC BY-SA 3.0
Blazing star
Liatris aestivalis
Overview
A native prairie perennial whose dramatic purple flower spikes bloom from the top down, providing weeks of color in late summer. Blazing star (Liatris) is a monarch butterfly magnet and one of the most valuable native pollinator plants. Its deep taproot makes it extremely drought-tolerant once established and perfectly suited to rain gardens and prairie restorations.
The blazing star, or Liatris aestivalis, is a stunning plant species that belongs to the Asteraceae family and genus Liatris. This summer-blooming beauty gets its name from the vivid purple-colored flowers that appear in dense heads on a spike-like stem, adding a burst of color to any garden.
Appearance and Distinguishing Features
The blazing star grows from rounded corms (underground storage structures) and can reach heights of 20 to 65 centimeters. Its stems are hairless, supporting the cylindrical-shaped spike of flowers that surrounds them. The dark-purple flowers are closely grouped together, creating a mesmerizing display. The basal and cauline leaves are linear to linear-lanceolate in shape, with one nerve running through them.
Native Range and Habitat
Liatris aestivalis is native to Oklahoma and Texas in the United States. It thrives in various habitats, including limestone outcrops, slopes, and their bases where shallow soils prevail. This adaptability makes it a perfect candidate for xeriscaping or creating drought-tolerant gardens.
Growing Conditions and Care
The blazing star prefers well-drained soil and full sun exposure. It is drought-tolerant once established but benefits from occasional watering during dry spells. To encourage re-growth, allow the foliage to die back naturally before cutting back the plant material. Liatris aestivalis spreads through corm formation, making it easy to propagate and share with fellow gardeners.
Uses
Ornamental: The vibrant purple flowers of the blazing star make it a sought-after ornamental plant for gardens, borders, and cut flower arrangements.
Ecological
Liatris aestivalis provides nectar and pollen for pollinators like bees, butterflies, and other beneficial insects. It also offers cover and nesting sites for birds and small animals.
Cultural or Historical Significance
The blazing star has been used by Native American tribes for various purposes, including the use of its roots in medicinal remedies. However, it is essential to consult with experts before using any plant material for medical reasons.
Notable Varieties or Related Species
While Liatris aestivalis stands out on its own, there are many other captivating species within the Liatris genus. Some popular varieties include Liatris spicata (Gayfeather), known for its tall spikes of purple flowers, and Liatris microcephala (Small-Headed Blazing Star), which forms dense clusters in prairies and open woods.
Growing Conditions
Habitat & Range
- Habitat
- Meadows & Open Areas
- Native Range
- Oklahoma and Texas in the United States, where it is found in habitats that range from limestone outcrops to slopes and bases of slopes with shallow soils
- Native Region
- Continental US
- Cultivation Region
- Temperate regions
Botanical data via projectGAIA.
Companion Planting & Soil
Good Companions
Planting Calendar
When to sow, transplant, and harvest by growing zone.
| Zone | Action | Months | Notes |
|---|---|---|---|
| Cold (1-2) | Transplant | May — Jun | Plant corms or plugs in spring; native prairie plant; very cold hardy |
| Cold (1-2) | Bloom | Jul — Sep | Spiky purple blooms attract monarch butterflies and native bees |
| Cool (3-4) | Transplant | Apr — May | Plant corms 2-4" deep; full sun; well-drained soil essential |
| Cool (3-4) | Bloom | Jul — Sep | Mid to late summer bloom; opens from top of spike downward |
| Moderate (5-7) | Transplant | Mar — Apr | Plant in spring; unique top-down blooming spike; excellent cut flower |
| Moderate (5-7) | Bloom | Jun — Sep | Long bloom period; leave seed heads for goldfinches |
| Moderate (5-7) | Divide | Mar — Apr | Divide corms every 3-4 years; each division needs growing eyes |
| Warm (8-9) | Transplant | Feb — Mar | Plant in late winter; needs good drainage — rots in wet soil |
| Warm (8-9) | Bloom | May — Aug | Summer bloom; drought tolerant once established |
| Hot (10+) | Transplant | Nov — Dec | Plant in fall; native to prairies and open woodlands |
| Hot (10+) | Bloom | May — Jul | Early to midsummer bloom |
Uses
Other Uses
- Premier pollinator and butterfly garden plant
- Excellent long-lasting cut flower
- Prairie and meadow restoration species
