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Garlic Mustard

Alliaria petiolata

Last reviewed: June 2026

Garlic Mustard (Alliaria petiolata)
Photo: Robert Flogaus-Faust / Wikimedia Commons (CC BY 4.0)

Light

part shade

Water

medium

Size

12"–48" H × 6"–12" W

Bloom

Apr, May, Jun

Native to

KY

Pollinators

bees, beetles

Browse plants for this ecoregion

Garlic mustard is an aggressive invasive biennial that forms dense colonies and crowds out native plants. It produces small white flowers in spring and has heart-shaped leaves that smell like garlic when crushed. This European species should never be planted intentionally as it damages local ecosystems.

In an HOA neighborhood

Garlic Mustard 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 species banned in many jurisdictions
  • Spreads aggressively to neighboring properties
  • Can look weedy and unkempt

Wildlife value

While it may attract some bees and beetles, garlic mustard provides poor wildlife value compared to native alternatives and actively harms native plant communities that wildlife depends on.

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