Backyard Bugs — Tucson Botanical Gardens, 2150 N. Alvernon Way. Join longtime gardens volunteer and bug enthusiast David Jester. Learn how bugs play important roles in gardens and the larger ecosystem, ask questions you’ve always wondered about and look at specimens of insects you might see in your own yard. 10 a.m.-3 p.m. Sept. 1. Free with gardens admission. 326-9686, Ext. 10.
A Blue Star Museum — Tohono Chul, 7366 N. Paseo Del Norte. Free admission to all active-duty military and their families. 8 a.m.-5 p.m. Sept. 2. $8 regular admission. 742-6455.
Knit & Crochet Women’s Club — Sister Jose Women’s Shelter, 18 W. 18th St. Located in historic Barrio Viejo just south of downtown, craftswomen can enjoy fellowship in a comfortable, air-conditioned home. 10-11 a.m. Every fourth Wednesday through Sept. 24. Free. 909-3905.
First Friday Artisans Market — “The Marketplace”, 3850 W. River Road. Art from more than 30 artists including glass, jewelry, furniture, photography, custom dinnerware, and cholla cactus art. 9 a.m.-1 p.m. Sept. 6. Free. 574-5535.
Urban Yarns @ the Library — Joel D. Valdez Main Library, 101 N. Stone Ave. Bring your hooks, needles, and lunches to for an informal weekly gathering. No instruction is provided. 11 a.m.-1 p.m. Fridays. Free. 791-4010.
Canyon Quilters — Kirk-Bear Canyon Library, 8959 E. Tanque Verde Road. An unstructured quilting opportunity to audition colors, layout blocks or applique. Ample tables for “sandwich” pinning. Electrical outlets available. Bring your own project or preview other quilters’ works in progress. noon-3 p.m. Noon-3 p.m. Fridays. Free. 594-5275.
Home Energizer Workshop — Joyner-Green Valley Library, 601 N. La Cañada Drive, Green Valley. Tucson Electric Power Co. presents free and low-cost energy-efficiency measures. Space is limited and registration is required. 2-3:30 p.m. Sept. 6. Free. 594-5295.
Free Vegetable Gardening Classes — Joyner-Green Valley Library, 601 N. La Cañada Drive, Green Valley. Basics on soil preparation, what to plant and when for growing vegetables in the fall-winter season. Space is limited. Register online at communityfoodbank.org/gardenworkshops 9-10:30 a.m. Sept. 7. Free. 594-5295.