Wildflower Archive

prairie wildflower

Cylindrical blazing star

Liatris cylindracea

Also known as Ontario Blazing Star, Ontario Gayfeather, Ontario Liatris, Dwarf Blazing Star, Dwarf Gayfeather, Dwarf Liatris

Cylindrical blazing star (Liatris cylindracea)
Mason Brock

Native to the Midwest and the Southeast and southern Canada

Western New York to Ohio and southerne Minnesota, south to Alabama and Arkansas

  • Light Full sun Sun tolerance
  • Moisture Dry Moisture preference
  • Zones 3–8 Cold to heat range
  • Bloom Jul–Sep Flowering time
  • Height up to 2 ft to 0.6 m
  • Life cycle Perennial Annual to perennial
Full details, see below

In the garden

A prairie wildflower for full sun and lean, dry soil. Its purple flowers peak in August. At up to 2 ft, it suits meadows and sunny borders. Hardy in USDA zones 3–8.

Growing conditions

Light
Full sun Partial shade Full shade
Moisture
Dry Moist Wet

Hardiness zones

Find your zone:

When it blooms

The Cylindrical blazing star's purple flowers bloom July to September, peaking in August. This late-summer display draws butterflies and bees.

Jul–SepJanFebMarAprMayJunJulAugSepOctNovDec

Cylindrical blazing star blooms purpleFoliage

Pollinators & wildlife

  • Butterflies Monarch
    also Fiery Skipper, Silver-spotted Skipper, Painted Lady +9 more Zabulon Skipper, Clouded Sulphur, Peck's Skipper, Dun Skipper, Wild Indigo Duskywing, Tawny-edged Skipper, Hoary Edge, Crossline Skipper, Leonard's Skipper
  • Bees Common Eastern Bumble Bee also Two-spotted Bumble Bee, Bombus fervidus, Golden Sweat Bee
  • Flower flies Margined Calligrapher
  • Also visited by
    • Moths: Snowberry Clearwing

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 Midwest and the Southeast and southern CanadaUnited States (14): AL, AR, IA, IL, IN, KS, KY, MI, MN, MO, NY, OH, TN, WI. Canada (1): ON. Where it grows wild on its own, by state and province.
Native distribution
Western New York to Ohio and southerne Minnesota, south to Alabama and ArkansasThe 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
DryThe soil dampness it prefers, from dry to wet.
Hardiness zones
USDA 3–8 · Canadian 4–7The cold-to-heat climate range it survives.
Soil
Dry, limey soilsThe soils it grows in naturally.

Growth & form

Height
up to 2 ft (to 0.6 m)Typical mature height.
Life cycle
PerennialWhether it lives a single season (annual), two (biennial), or returns for years (perennial).

Flowers, foliage & fruit

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