Blazing Star (Liatris) - purple flowers, illustrated plant cardIllustration

Blazing Star

Liatris

Also called gayfeather

Also comes in white.

Blazing Star blooms from July through August.

Bloom calendar
Bloom time
Jul–Aug
not yet checked
Hardiness
Zones 3–9
checked
Sun
Full sun
checked
Water
Low water
not yet checked
Mature size
3 ft × 1 ft
checked
Type
Perennial
house classification

Months here are Northern Hemisphere months; in the Southern Hemisphere, shift them by six months.

Growing Blazing Star

Plant it in full sun. It prefers low water. It is hardy in USDA zones 3–9. Expect it to reach about 3 ft tall and 1 ft wide at maturity, in roughly 2 years (not yet checked).

Verification
What was checked

Mature height and spread, hardiness zones, sun and the trait tags were checked against named botanical sources for this plant. The bloom months and water need on this page were not, and each fact above says which. The planting, spacing and size sections are derived from these checked facts by a fixed rule, not checked separately, and the plant type is the library's own classification.

See the 12 sources it was checked against

When to plant Blazing Star

Plant Blazing Star in early spring as soon as the soil is workable, or in early fall at least six weeks before your first frost, so roots establish in cool weather. In zone 6, the middle of its hardy zones 3 to 9, spring means March to May and fall means August or September. Once settled, it blooms from July to August.

Month-by-month timing for your zone is on the planting calendar; if you garden near zone 6, the middle of this plant's hardy range, start with zone 6 in March. Derived from the plant's category, zones and bloom months plus typical zone frost dates, not checked separately.

How big does Blazing Star get?

Illustration of Blazing Star drawn to scale beside an adult3 fttall5 ft 7 inan adult1 ftwide
About 3 ft tall and 1 ft wide at maturity: waist-high beside an adult.

See Blazing Star in a garden plan: the planner shows it in 3D beside everything else you add, growing toward this size over the years.

How far apart to plant Blazing Star

Derived from the mature spread above by a fixed rule, not checked separately: spacing is the spread, center to center.

Space Blazing Star about 1 ft apart, center to center, so each plant has room to reach its full width.

Plant them
1 ft apart
Per 10 sq ft
about 10
4 by 8 ft bed
about 32

Add Blazing Star to a garden plan and the planner draws it at its full width, so you see the spacing before you buy.

Where these facts come from

Blazing Star's height, spread, hardiness zones, sun and trait tags were checked against 12 published sources on July 31, 2026. Each one is linked below with every fact it carried, which can include a fact this page still marks as not yet checked, because a source carrying a value is not the same as the value being held to the standard. Facts not in that list, and the planting, spacing and size sections, are not covered by these sources.

How the checking works, and what each standard covers, is on the verified plants page.

Good to know about Blazing Star

Curated from university extensions, botanic gardens and other primary sources, with the source named on every note. A note reports what its source says; where that differs from a fact above, the fact above is this entry's stored value, and its mark says whether it has been checked.

Worth knowing

Its flower spikes open from the top down, opposite to almost every other spike flower, which open from the bottom up. It is a signature trait of Liatris. per NC State

Height varies a lot

The straight species and prairie types reach 3 to 6 ft; garden and dwarf forms run 2 to 3 ft. Pick a cultivar to fit. per NC State and University of Illinois

Water needs split by phase

Blazing star is drought tolerant once established, yet L. spicata also welcomes average-to-moist soil, even a rain garden. So do not keep it bone dry. per Wisconsin and NC State

Winter wet rots the corm

The corm rots in heavy, waterlogged winter soil, the leading way the plant is lost. Illinois Extension calls sharp drainage critical to survival. per University of Illinois

Monarch and butterfly magnet

A top pollinator plant: a monarch and butterfly magnet on nearly all Xerces monarch nectar guides, and the only larval host of the Schinia flower moths. per Xerces and NC State

Excellent cut and dried flower

Prized by florists fresh or dried for its strong vertical spike and long vase life. NC State rates it Good Cut and Good Dried. per NC State

Safe, not the toxic snakeroot

The ASPCA lists blazing star as non-toxic to pets. Do not confuse it with white snakeroot, an unrelated, highly toxic plant that shares the folk name. per ASPCA and NC State

What pairs well with Blazing Star

Good companions share its growing conditions and add something it lacks: an earlier or later bloom, a lower carpet in front, or structure through winter.

  • Creeping Phlox

    Creeping Phlox

    Shares full sun and low water; blooms in mid spring, before this one opens; both are strong pollinator plants, and they feed in different months; lower at 6 in, for the front of the border.

  • Sage

    Sage

    Shares full sun and low water; blooms in late spring, before this one opens; both are strong pollinator plants, and they feed in different months; echoes the purple.

  • Chives

    Chives

    Shares full sun and low to moderate water; blooms in late spring, before this one opens; both are strong pollinator plants, and they feed in different months; both are North American natives.

  • Ninebark

    Ninebark

    Shares full sun and low to moderate water; blooms in late spring, before this one opens; both are strong pollinator plants, and they feed in different months; taller at 6.5 ft, for the layer behind it.

  • Weigela

    Weigela

    Shares full sun and low to moderate water; blooms in late spring, before this one opens; both are strong pollinator plants, and they feed in different months; taller at 5 ft, for the layer behind it.

  • False Indigo

    False Indigo

    Shares full sun and low water; blooms in late spring, before this one opens; both are strong pollinator plants, and they feed in different months; both are North American natives.

  • Thyme

    Thyme

    Shares full sun and low water; opens in late spring and overlaps into this one's season; both are strong pollinator plants; lower at 6 in, for the front of the border.

  • Crocus

    Crocus

    Shares full sun and low water; blooms in late winter, before this one opens; both offer pollinator forage, in different months; lower at 4 in, for the front of the border.

All 8 companion pairings for Blazing Star →

Try Blazing Star with its top companions in a garden →

Featured in these guides

Explore similar plants

You might also like

Design a garden with this

Drop this plant onto a 3D plan, see how it fills in, and watch your whole garden bloom across the year.

Design a garden with this →