Learn about soil and composting at the Tucson Organic Gardeners Monthly Meeting on Sept. 19.

Ron Medvescek / Arizona Daily Star

All events are free or included in the cost of admission unless otherwise noted.

Tuesday

Herbs — Dussenberry-River Public Library, 5605 E. River Road. Learn which herbs do well, which do best in pots, and when varieties should be planted. Ages 12 and up. 2-3:30 p.m. Sept. 19. 594-5345.

Tucson Organic Gardeners Monthly Meeting — St. Mark’s Church, 3809 E. Second St. “Have Your Best Soil Ever,” an introduction to garden soil and composting. 7-9 p.m. Sept. 19. 749-9429.

Wednesday

Demonstration Garden Tours — Pima County Cooperative Extension, 4210 N. Campbell Ave. A master gardener volunteer leads a walk through the gardens. Ages 12 and up. 9-10 a.m. Sept. 20. 626-5161.

Thursday

3-D Collage Tins — Upcycle Tucson, 924 W. Grant Road. Personalize a box or tin using collage techniques. Register online. Ages 16 and up. 5:30-7 p.m. Sept. 21. $19. 445-7694.

TEP Home Energizer Workshop — Himmel Park Public Library, 1035 N. Treat Ave. Learn free and low-cost energy efficiency measures to implement at home to save energy and money. Workshop participants will receive a free Energy Efficiency Kit. 6-7:30 p.m. Sept. 21. 594-5305.

Friday

Friday Fun Knitters — Foothills Mall Food Court, 7401 N. La Cholla. Knit, crochet and needlework. 9:45-11:30 a.m. Sept. 22. 297-1745.

Saturday

Demonstration Garden Tours — Pima County Cooperative Extension. A master gardener volunteer leads a walk through the gardens. Ages 12 and up. 9-10 a.m. Sept. 23. 626-5161.

Tucson Area Iris Society: Annual Iris Plant and Rhizome Sale — Harlow Garden Nursery, 5620 E. Pima St. Iris rhizomes of many types and colors, talk on planting in ground and in containers, individual help from members and printed educational information on growing irises. 9 a.m.-1 p.m. Sept. 23. 298-3303.

Fall Vegetables — CEAC, 1951 E. Roger Road. Learn what can easily be grown in the desert, when to plant and what kind of soil to use. Call to reserve a seat at 626-5161 or emailing fcorrell@cals.arizona.edu. Ages 12 and up. 9:30-11:30 a.m. Sept. 23. $10. 626-5161.

One Seed Pima County: Using Legumes to Build Healthy Soil — Joel D. Valdez Main Library, 101 N. Stone Ave. Learn which legumes grow best in Tucson, when to plant, and how to use them to build healthy soils. 11 a.m.-noon. Sept. 23. 791-4010.