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Western Gromwell

Lithospermum ruderale

Last reviewed: June 2026

Western Gromwell (Lithospermum ruderale)
Photo: Walcott, Mary Vaux / Wikimedia Commons (CC0)

Light

full sun

Water

low

Size

4"–24" H × 6"–18" W

Bloom

May, Jun, Jul

Native to

CA, CO, ID, MT and 5 more states

Pollinators

bees, beetles

Browse plants for this ecoregion

Western gromwell is a low-growing native perennial with small white to pale yellow flowers that bloom from May through July. This drought-tolerant wildflower forms compact clumps and thrives in full sun with minimal water once established.

In an HOA neighborhood

Western Gromwell 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.

  • Very small flowers may appear weedy to HOAs
  • Low growth habit can look unkempt
  • Unknown leaf retention creates uncertainty about winter appearance

Wildlife value

The small flowers attract native bees and beetles during the late spring and summer blooming period. It provides habitat value for local wildlife.

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.

Does Western Gromwell fit your yard? Open it in Pollinator Patch to check it against your sun, soil, and HOA-conscious filters.