Photo: Samuel A Schmid, PhD, PWSCC BY 4.0

perennialN. America Native

Scaly Blazing Star

The Story

Plant Bio

Liatris squarrosa, commonly known as rough blazing star, is a perennial herb distinguished by its upright growth habit, linear, grass-like foliage, and dense spikes of purple to pinkish flowers that attract pollinators.

This species is notable for its drought tolerance and adaptability to poor soils, making it a resilient choice for prairie-style gardens and naturalized settings.

Uses & Benefits:

Provides tall, vibrant purple flower spikes that attract pollinators and add late-season color.

Drought-tolerant once established, requiring minimal watering.

Supports bees, butterflies, and hummingbirds, enriching local biodiversity.

Essentials

At a Glance

Plant Type

Perennial

Height

24 inches

Width

12 inches

Light

Full Sun, Partial Sun

Zones

4, 5, 6, 7, 8, 9

Water

Dry to medium

Humidity

Prefers dry to moderate humidity

Lifespan

Perennial

Native To

North America

Toxicity

Non-toxic to humans and pets

Bloom period

Late summer – Mid-fall

In flower about 3 months of the year

Planting

How to Grow

Tuck seeds into well-draining soil in early spring.
Water regularly until established, about 6 weeks.
Ensure full sun exposure for best flowering.
Deadhead spent flowers to promote more blooms.
Divide clumps every 3–4 years in early spring.
Mulch around base to retain moisture and suppress weeds.

Pro Tip

Plant in full sun with well-draining soil for optimal growth.

Keep It Thriving

Care Guide

Do

Water during dry spells 🌱
Deadhead to encourage more flowers 🌱
Divide every few years 🌱
Apply mulch to conserve moisture 🌱

Don't

Overwater to avoid root rot ❌
Neglect deadheading ❌
Plant in overly shaded areas ❌
Use heavy clay soil without amendments ❌

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Divide
Plant
Spring Cleanup

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Prairie-style perennial borderWildflower meadow accentButterfly-friendly garden feature

Companion Plants

Echinacea purpurea Rudbeckia hirta Solidago spp.Liatris spicata

Multiply

Propagation Methods

Good to Know

Common Questions

Scaly Blazing Star questions

What zones can Scaly Blazing Star grow in?

Scaly Blazing Star is hardy in USDA Zones 4–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Scaly Blazing Star deer resistant?

Yes — Scaly Blazing Star is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

When does Scaly Blazing Star bloom?

Scaly Blazing Star typically blooms in late summer through mid-fall. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Scaly Blazing Star need full sun?

Scaly Blazing Star does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.

Is Scaly Blazing Star drought tolerant?

Yes — once established (usually after the first full season), Scaly Blazing Star handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.