Wildflower Archive

prairie wildflower

Prairie blazing star

Liatris pycnostachya

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

Prairie blazing star (Liatris pycnostachya)1 of 2
Daderot

Native to the Great Plains, the Midwest, and the Southeast

Wisconsin to South Dakota, south to Louisiana and eastern Texas

  • Light Full sun Sun tolerance
  • Moisture Dry to moist Moisture preference
  • Zones 3–9 Cold to heat range
  • Bloom Jul–Aug Flowering time
  • Height up to 6 ft to 1.8 m
  • Life cycle Perennial Annual to perennial
Full details, see below

In the garden

A prairie wildflower for full sun and dry to moist soil. Its pink and purple flowers peak in July. At up to 6 ft, it needs room in meadows and sunny borders. It shrugs off drought once established. Hardy in USDA zones 3–9.

Growing conditions

Light
Full sun Partial shade Full shade
Moisture
Dry Moist Wet

Hardiness zones

Find your zone:

When it blooms

The Prairie blazing star's pink and purple flowers bloom July to August, peaking in July. This midsummer display draws bees and butterflies.

Jul–AugJanFebMarAprMayJunJulAugSepOctNovDec

Prairie blazing star blooms pink & purpleFoliage

Pollinators & wildlife

  • Bees Common Eastern Bumble Bee
    also Western Honey Bee, Brown-belted Bumble Bee, Two-spotted Bumble Bee +28 more American Bumble Bee, Ligated Furrow Bee, Tricolored Bumble Bee, Bicolored Striped Sweat Bee, Bombus fervidus, Two-spotted Longhorn Bee, Black-and-gold Bumble Bee, Half-black Bumble Bee, Lemon Cuckoo Bumble Bee, Rusty-patched Bumble Bee, Blue Orchard Bee, broad-handed leafcutter bee, Southern Plains Bumble Bee, Megachile inimica, Squash Longhorn-Cuckoo, Agile Longhorn Bee, Ceratina dupla, Triepeolus simplex, Triepeolus cressonii, Small Willow Miner Bee, Melissodes coloradensis, Eastern Cuckoo Sweat Bee, Field Cuckoo Bumble bee, Bombus sp., Lunate Longhorn-cuckoo Bee, Svastra obliqua, Agapostemon viridulus, Triepeolus concavus
  • Butterflies Monarch
    also Eastern Tiger Swallowtail, Common Buckeye, Silver-spotted Skipper +22 more Pipevine Swallowtail, Gray Hairstreak, American Lady, Orange Sulphur, Great Spangled Fritillary, Queen, Spicebush Swallowtail, Viceroy, Zabulon Skipper, Cloudless Sulphur, Peck's Skipper, Dun Skipper, Long-tailed Skipper, Tawny-edged Skipper, Palamedes Swallowtail, Eufala Skipper, Aphrodite Fritillary, Papilio cresphontes, Danaus plexippus plexippus, Speyeria idalia, Polites coras, Anosia plexippus
  • Flower flies Common Drone Fly
    also Yellow-shouldered Drone Fly, Eastern Hornet Fly, Broad-headed Marsh Fly +2 more Exoprosopa fasciata, grasshopper bee fly
  • Also visited by
    • Moths:
      Snowberry Clearwing, Hummingbird Clearwing +3 more Master's Dart, Carrot Seed Moth, Toadflax Brocade Moth
    • Beetles: Goldenrod Soldier Beetle, Black Diabrotica
    • Wasps: Eastern Yellowjacket

Butterflies that use this plant

Documented host and nectar records. Each links to a planting guide for that butterfly.

Full plant details

Where it grows

Habitat
PrairieThe wild plant community it grows in.
Native range
The Great Plains, the Midwest, and the SoutheastUnited States (16): AR, IA, IL, IN, KS, KY, LA, MN, MO, MS, ND, NE, OK, SD, TX, WI. Where it grows wild on its own, by state and province.
Native distribution
Wisconsin to South Dakota, south to Louisiana and eastern TexasThe same native range, usually more exact than the state list, and often noting where it has spread beyond it.

Growing conditions

Light
Full sunHow much sun it takes, from full sun to full shade.
Moisture
Dry to moistThe soil dampness it prefers, from dry to wet.
Hardiness zones
USDA 3–9 · Canadian 4–7The cold-to-heat climate range it survives.
Soil
Moist, well-drained soils. Rocky, Sandy, Sandy Loam, preferably of poor qualityThe soils it grows in naturally.
Soil pH
6.0–8.5The acidity to alkalinity it tolerates (7 is neutral).
Soil quality
MediumHow rich a soil it needs. Many natives prefer lean soil and flop in rich beds.
Water use
MediumHow thirsty it is, a rough guide to how often to water.
Drought tolerance
HighRelative to plants of the same type and region, inferred from where it grows, not a days-without-water figure.
Salinity tolerance
NoneHow well it copes with salty soil, near roads or the coast.
Lime (CaCO₃) tolerance
LowHow well it copes with chalky, lime-rich soil.

Growth & form

Height
up to 6 ft (to 1.8 m)Typical mature height.
Life cycle
PerennialWhether it lives a single season (annual), two (biennial), or returns for years (perennial).
Growth rate
SlowA relative ranking versus other plants of the same type (USDA), not an absolute rate.
Shape
ErectIts overall silhouette.
Root depth
14+ in (36+ cm)How far the roots reach, a guide to drought resilience and transplanting.

Flowers, foliage & fruit

Type
WildflowerWhat kind of plant it is.
Bloom
Jul–AugWhen it flowers.
Flower color
Pink, PurpleThe bloom color, or colors.
Fruit/Seeds
Achene; ripens Jul–NovThe seed or fruit it sets after flowering.
Toxicity
None knownWhether any part is poisonous to people or pets.

Propagation & seed

Cold stratification
Required (cold, moist)Whether seed needs a cold, moist spell before it will germinate.
Propagation
Container, corm, cuttings, seedHow to start new plants.
Seed
~0.1 million seeds per poundNotes on the seed and how to sow it.
Seed spread rate
SlowHow readily it self-sows. Slow or none means well-behaved, not a spreader.
Seedling vigor
MediumHow strongly young seedlings establish.
Vegetative spread
NoneWhether it creeps outward or stays put in a clump.