Carilyn Roach, community relations specialist for Watershed Management Group, shows that there is a 10,000 gallon tank underground at 1137 N. Dodge Blvd. The group does not use any Tucson City water and uses all rain water for their needs, including showers, drinking water and a small garden.

Mamta Popat / Arizona Daily Star 2016

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

Tuesday

Roses in the Spring — Dusenberry River Public Library, 5605 E. River Road. Learn the right time to prune roses and to perform must-do maintenance. Ages 12 and up. 2-3:30 p.m. Jan. 16. 594-5345.

Thursday

Living Lab Field Studies: Water Harvesting Irrigation Systems — Watershed Management Group, 1137 N. Dodge Blvd. Learn the fundamentals of planning and installing irrigation systems compatible with rain gardens, rain tanks, and water harvesting systems. Register at watershedmg.org/event/tucson?field_event_type_value=field. 5:30-8 p.m. Jan. 18. $30. 396-3266.

Yarnivores — Murphy-Wilmot Public Library, 530 N. Wilmot Road. Bring a brown-bag dinner and join a group devoted to the yarn art. 6-7 p.m. Jan. 18. 594-5420.

Friday

Friday Fun Knitters — Foothills Mall Food Court, 7401 N. La Cholla. Knit, crochet and needlework. 9:45-11:30 a.m. Jan. 19. 297-1745.

Roses in the Spring — Oro Valley Public Library, 1305 W. Naranja Drive. Learn the right time to prune roses and perform must-do maintenance. Ages 12 and up. 1:30-3 p.m. Jan. 19. 594-5580.

Saturday

Fruit Tree Propagation — Kirk-Bear Canyon Public Library, 8959 E. Tanque Verde Road. Learn to grow desert-adapted fruit trees from cuttings. Fig, pomegranate, membriollo (quince), and other fruit trees will be discussed. 10 a.m.-noon. Jan. 20. 594-5275.

Tomatoes for the Desert — Eckstrom-Columbus Public Library, 4350 E. 22nd St. Learn how to grow tomatoes. Ages 12 and up. 10-11:30 a.m. Jan. 20. 594-5285.