Pasture Thistle
Cirsium pumilum
Last reviewed: June 2026

Toxicity unknown
Pasture Thistle (Cirsium pumilum) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.
Light
full sun
Water
low
Size
12"–36" H × 6"–18" W
Bloom
Jun, Jul, Aug
Native to
CT, DE, IA, IL and 18 more states
Pollinators
bees, butterflies, beetles
Before you buy
Your city may pay you to plant this
Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 452 programs across 44 states, each with a link to the provider and the date we last checked it.
Find rebates in your areaBrowse plants for this ecoregion
Pasture thistle is a native wildflower that produces purple blooms from June through August. This compact perennial reaches 1-3 feet tall and thrives in sunny, dry conditions with minimal water needs.
In an HOA neighborhood
Pasture 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
- Spiny stems may be considered hazardous
- Can appear weedy and unkempt
Wildlife value
The purple flowers attract bees, butterflies, and beetles during summer months. Seeds provide food for goldfinches and other native birds.
Common questions
- How much sun does Pasture Thistle need?
- Pasture Thistle grows best in full sun conditions.
- When does Pasture Thistle bloom?
- Pasture Thistle blooms in June, July, and August.
- Where is Pasture Thistle native?
- Pasture Thistle (Cirsium pumilum) is native to CT, DE, IA, IL and 18 more states, per vouchered herbarium specimen records and regional native plant society lists.
- What pollinators does Pasture Thistle attract?
- Pasture Thistle draws bees, butterflies, and beetles.
- Is Pasture Thistle HOA-friendly?
- Pasture 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 vouchered herbarium specimen records and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
If something looks wrong
Common plant problems, and what to check first
These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.
- It is dying right after planting
- Leaves turning yellow
- Wilting even though I watered it
- Brown crispy leaf tips
- Bugs on the plant
Ready to grow Pasture Thistle? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.
Planning a bed around it? Start a free plan with this plant
Not sure where to start? Take the 2-minute yard quiz