Rainwater Harvesting Class: Tucson Water Rebate — Watershed Management Group on Dodge and Speedway, 1137 N. Dodge Blvd. A brief tour of water harvesting on site, an introduction to rainwater harvesting, information about the Tucson Water Rainwater Harvesting Incentives Rebate Program and a design process. Register on line at watershedmg.org. 9 a.m.-noon. Oct. 21. 396-3266, Ext. 22.

Rainwater Harvesting Class (Tucson Water Rebate)

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

Sunday

Fall Plant Sale — Tohono Chul Park, 7211 N. Northern Ave. typical, unusual, native, cold-hardy, arid-adapted plants from agaves to Zauschneria and everything in-between. Bring a wagon if possible. 9 a.m.-5 p.m. Oct. 15. 742-6455.

Tuesday

Fall Opening — Yume Japanese Gardens of Tucson, 2130 N. Alvernon Way. Tea ceremonies, art/handicrafts exhibits and classes in traditional customs such as Japanese flower arranging. 9:30 a.m.-4:30 p.m. Tuesday-Saturday. 1-502-303-3945.

Master Gardener Talks: Cool Season Vegetable Gardening — Joel D. Valdez Main Library, 101 N. Stone Ave. Learn how to grow fresh, vegetables during the cool fall and winter seasons. Noon-1 p.m. Oct. 17. 791-4010.

Cool-Season Vegetable Gardening — Dussenberry-River Public Library, 5605 E. River Road. Learn how to grow fresh vegetables during the cool fall and winter seasons. Ages 12 and up. 2-3:30 p.m. Oct. 17. 594-5345.

Tucson Organic Gardeners Monthly Meeting — St. Mark’s Church, 3809 E. Second St. Program: Even Better Compost. 7-9 p.m. Oct. 17. 749-9429.

Wednesday

Demonstration Garden Tours — Pima County Cooperative Extension, 4210 N. Campbell Ave. Master gardener volunteer lead a walk through the gardens. Ages 12 and up. 9-10 a.m. Oct. 18. 626-5161.

Friday

Friday Fun Knitters — Foothills Mall Food Court, 7401 N. La Cholla. Knit, crochet and needlework. 9:45-11:30 a.m. Oct. 20. 297-1745.

Saturday

Seed Library Volunteer Orientation — Joel D. Valdez Main Library. Become a volunteer to sort seeds, outreach, mentor new gardeners and more. Fill out an application and bring it to orientation. Call or e-mail Karen.Greene@pima.gov to RSVP. 8:30-9:30 a.m. Oct. 21. 791-4010.

Demonstration Garden Tours — Pima County Cooperative Extension. Master gardener volunteer lead a walk through the gardens. Ages 12 and up. 9-10 a.m. Oct. 21. 626-5161.

Rainwater Harvesting Class: Tucson Water Rebate — Watershed Management Group on Dodge and Speedway, 1137 N. Dodge Blvd. A brief tour of water harvesting on site, an introduction to rainwater harvesting, information about the Tucson Water Rainwater Harvesting Incentives Rebate Program and a design process. Register on line at watershedmg.org. 9 a.m.-noon. Oct. 21. 396-3266, Ext. 22.

Adjusting to Desert Gardening — Eckstrom-Columbus Public Library, 1305 W. Naranja Drive. Learn the best practices for successfully making the transition to desert gardening. Ages 12 and up. 10-11:30 a.m. Oct. 21. 594-5285.

Kids Gardening: Plant a Flower in a Pumpkin — Harlow Gardens, 5620 E. Pima St. Children up to age 10 years are invited to come and plant a flower in a pumpkin. 10-11 a.m. Oct. 21. 298-3303.

Secrets of Citrus — Harlow Gardens. Learn how to grow citrus trees in the desert. 2-3 p.m. 298-3303.