Garlic mustard is a non-native weed that smothers native wildflowers.

The 21st annual Garlic Mustard Pull at Perkins Woods will take place from 9 a.m. to noon on May 4. Perkins Woods is located along Ewing Avenue, between Grant and Colfax streets, in northwest Evanston.

  Anyone who wishes to have more information or to register as a puller should call Libby Hill, volunteer steward, at 847-475-2096.