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Tall Thistle

Cirsium altissimum

Last reviewed: June 2026

Tall Thistle (Cirsium altissimum) is a native forb found across eastern and central United States that blooms July through September. This hardy plant attracts bees, butterflies, and beetles with its purple flower heads.

Tall Thistle (Cirsium altissimum)
Photo: Sesamehoneytart / Wikimedia Commons (CC BY-SA 3.0)

Light

full sun

Water

medium

Size

24"–72" H × 12"–36" W

Bloom

Jul, Aug, Sep

Native to

AL, AR, DE, FL and 26 more states

Pollinators

bees, butterflies, beetles

Tall thistle is a striking native biennial that produces large purple flower heads on sturdy stems from summer through early fall. This plant can reach up to 6 feet tall and provides excellent late-season color in prairie and naturalized settings.

Growing Tall Thistle

Grow Tall Thistle in full sun and medium water. Mature plants reach 24 to 72 inches tall and spread 12 to 36 inches wide. Expect low maintenance to keep it looking intentional in a front yard.

In an HOA neighborhood

Tall Thistle takes more care to keep looking intentional in a front yard. Maintenance level: low. Consider it for backyard or mid-zone beds rather than the street edge.

Works well in: backyard only.

  • Thistle name creates negative perception
  • Can look very weedy and wild
  • May self-seed aggressively

Wildlife value

Host plant for painted lady butterfly.

The purple blooms are magnets for bees, butterflies, and beetles during late summer when many other flowers have faded. Seeds provide food for goldfinches and other birds in fall.

Common questions

Where is Tall Thistle native to?
Tall Thistle is native to 34 states across the eastern and central United States, from Massachusetts south to Florida and west to North Dakota, Kansas, and Texas.
When does Tall Thistle bloom?
Tall Thistle blooms from July through September, producing purple flower heads that attract various pollinators.
What pollinators visit Tall Thistle?
Tall Thistle attracts bees, butterflies, and beetles with its nectar-rich flowers during the late summer blooming period.
What growing conditions does Tall Thistle prefer?
Tall Thistle grows best in full sun but tolerates partial sun, and adapts to a wide range of moisture conditions from wet to dry soils.
Is Tall Thistle HOA-friendly?
Tall Thistle takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

Native range data from the USDA PLANTS Database and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

Ready to grow Tall Thistle? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.

Not sure where to start? Take the 2-minute yard quiz