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Prickly Russian Thistle

Salsola tragus

Last reviewed: June 2026

Prickly Russian Thistle (Salsola tragus)
Photo: no rights reserved, uploaded by Ben Keen

Light

full sun

Water

low

Size

12"–36" H × 12"–24" W

Bloom

Jul, Aug, Sep

Native to

WY

Pollinators

beetles, flies

Russian thistle is a tumbling weed that forms rounded, bushy plants with small inconspicuous flowers. This invasive annual breaks off at ground level in fall and rolls across the landscape, spreading seeds widely. It thrives in poor, dry soils and disturbed areas.

In an HOA neighborhood

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

  • Invasive weed species prohibited in most areas
  • Forms tumbleweeds that create maintenance issues
  • Generally considered undesirable in landscaping

Wildlife value

Provides some late-season nectar for beetles and flies during summer blooming. However, as an invasive species, it offers limited ecological value compared to native alternatives.

Common questions

How much sun does Prickly Russian Thistle need?
Prickly Russian Thistle grows best in full sun conditions.
When does Prickly Russian Thistle bloom?
Prickly Russian Thistle blooms in July, August, and September.
Where is Prickly Russian Thistle native?
Prickly Russian Thistle (Salsola tragus) is native to WY, per the USDA PLANTS Database and regional native plant society lists.
What pollinators does Prickly Russian Thistle attract?
Prickly Russian Thistle draws beetles and flies.
Is Prickly Russian Thistle HOA-friendly?
Prickly Russian 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 Prickly Russian Thistle? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.

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