Prairie Gayfeather

Liatris pycnostachya

Other common name(s):

Prairie Blazing Star, Prairie Liatris, Kansas Blazing Star, Kansas Gayfeather, Kansas Liatris, Cat-tail Blazing Star, Cat-tail Gayfeather, Cat-tail Liatris, Hairy Button-snakeroot

Family:

Asteraceae (Aster Family)

Plant Ecoregion Distribution Map

This map uses data from the US EPA. EPA  servers have been offline frequently so maps may not display. We are working on a solution.

East Central Texas Plains, Gulf Coast Prairies and Marshes, Western Gulf Coastal Plain
Northern Post Oak Savanna, Northern Prairie Outliers
Northern Humid Gulf Coastal Prairies
Flatwoods, Floodplains and Low Terraces3, Pleistocene Fluvial Terraces, Red River Bottomlands, Southern Tertiary Uplands, Tertiary Uplands

Plant Characteristics

Growth Form

Herbaceous

Height

1
to
5
ft.

Spread

0.5
to
1
ft.

Leaf Retention

Deciduous

Lifespan

Perennial

Habitat and Care Requirements

Soil Type(s)

Sand, Loam, Clay, Poor Drainage, Moist

Light Requirement

Sun

Water Requirement

Medium

Native Habitat

Grassland

Bloom and Attraction

Bloom Color

Pink, Purple

Bloom Season

Summer, Fall

Seasonal Interest

Nectar, Pollen

Wildlife Benefit

Butterflies, Nectar Insects, Bees

Maintenance

Low maintenance. One of the few Liatris that will grow in moist soils. Can be grown as an ornamental. Makes good cut flowers. Propagation: clump division, seed.

Comments

Blooms June-December. Tall, coarse, hairy, very leafy stem. The lower portion of the stem is covered with short, fuzzy, grass-like leaves. Tall, thick spikes of purple flowers bloom from the top down. The fruit is a cypsela: a dry, one-seeded fruit, usually topped by pappus.
Material Treatment Method Collection References
Clump Division Carefully dig up the plant and separate the clumps, ensuring each division has a portion of the root system. Replant immediately in well-prepared soil. Division is best done in the spring or fall. https://earthone.io/plant/liatris%20pycnostachya?srsltid=AfmBOorlwP1LTFQpBzjGnUU4vg_ZLpAdUFwm5vX8U-yy6AgNOV3IWqPh
Seed Scarification, Stratification Llightly nick seed with a knife, use rock tumbler or boiling water) and moist stratification (3 months at 40 degrees). Scarified seeds may be sown outside in late fall or stored, stratified and sown the following spring. These plants produce a large amount of seed so storing the seed in paper bags in the refrigerator after collection and sowing in early spring offers good results as well. When sowing ex-situ, germination usually occurs within 20-25 days. The optimum temperature range is 55-75 degrees F in well drained soil. Barely cover the seed with growing media and reduce soil temperature at night. Wait until the flower heads on the entire stalk have turned fluffy tan before collecting. Bring the stalks inside to air-dry then shake or brush the nutlets from the heads. Seeds can be stored with chaff in paper bags or envelopes in the refrigerator. https://www.wildflower.org/plants/result.php?id_plant=LIPY

About the Region

Fall Symposium 2025 Logo - Teach for the Future

Salado, the location of our Fall 2025 Symposium, lies at the intersection of two ecoregions: the Edwards Plateau (Limestone Cut Plain) and Blackland Prairie (Northern Blackland Prairie).

The Edwards Plateau area is also called the Hill Country; however, this general term covers a much larger area extending farther north. Spring-fed creeks are found throughout the region; deep limestone canyons, rivers, and lakes (reservoirs) are common. Ashe juniper is perhaps the most common woody species found throughout the region. Additional woody species include various species of oak, with live oak (Quercus fusiformis) being the most common. Sycamores (Platanus occidentalis) and bald cypress (Taxodium distichum) border waterways. This area is well known for its spring wildflower displays, though they may be viewed in spring, late summer, and fall, as well. According to Texas Parks and Wildlife, average annual rainfall in the Edwards Plateau ranges from 15 to 34 inches.

The Blackland Prairie extends from the Red River south to San Antonio, bordered on the west by the Edwards Plateau and the Cross Timbers, and on the east by the Post Oak Savannah. Annual rainfall averages 30 to 40 inches, with higher averages to the east. This region is dominated by prairie species. The most common grass species include little bluestem (Schizachyrium scoparium) and Indian grass (Sorghastrum nutans) in the uplands and switchgrass (Panicum virgatum) in the riparian areas and drainages. Common herbaceous flowering plants include salvias, penstemons, and silphiums. This area has suffered greatly from overgrazing and agricultural use. Few intact areas remain, though many of the plants can be found along county roadsides throughout the region.

Our fall Symposium host chapter, the Tonkawa Chapter, includes both of these ecoregions.

Source: Wildflowers of Texas by Michael Eason