Living Lab Field Studies: Pruning Native Shade Trees — Watershed Management Group, 1137 N. Dodge Blvd. Learn tree care and pruning practices with classroom-style learning, hands on practice and take-home materials. Registration is required. 8-11 a.m. Nov. 18. $30. 396-3266, Ext. 22.

Join us for a jam-packed session on proper tree care and pruning practices.

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

Sunday

Southern Arizona Koi Show — Oro Valley Marketplace, 12155 N. Oracle Road. Koi and goldfish on display, raffle and prizes. 9 a.m.-5 p.m. Nov. 12. 780-3980.

Armory Park Historic Home Tour — Tour starts at St. Andrews Episcopal Church, 545 S. Fifth Ave. This self-guided stroll offers a glimpse at styles ranging from California bungalow and dainty Victorian to clever, contemporary, adaptations of vintage commercial buildings. Proceeds benefit Armory Parks Neighbors Feeding Neighbors and other APNA charities. Noon-5 p.m. Nov. 12. $20. 1-415-613-3312.

Enchanted Evenings — Yume Japanese Gardens of Tucson, 2130 N. Alvernon Way. Traditional Japanese melodies on bamboo flute, lanterns and candlelight. 7:30-8:30 p.m. Nov. 12. 303-3945.

Monday

Master Gardeners: Cold Weather Gardening — Oro Valley Public Library, 1305 W. Naranja Drive. New ideas on how to create a beautiful winter garden. Ages 13 and up. 1:30-3 p.m. Nov. 13. 594-5580.

Tuesday

Master Gardener: Cool Season Vegetable Gardening — El Rio Public Library, 1390 W. Speedway. Learn how to grow all kinds of edible plants during the cool fall and winter seasons. 4-5:30 p.m. Nov. 14. 594-5245.

Wednesday

Demonstration Garden Tours — Pima County Cooperative Extension, 4210 N. Campbell Ave. A walk with a master gardener through the gardens. Meet at the plant clinic sign. 9-10 a.m. Nov. 15 and 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. Nov. 17. 297-1745.

Is it A Cactus or A...sparagus — Saguaro National Park East, 3693 S. Old Spanish Trail. Come learn the difference between the two most famous families of desert plants on this short stroll in the cactus garden. 10-10:30 a.m. Nov. 17. 733-5153.

Saturday

Living Lab Field Studies: Pruning Native Shade Trees — Watershed Management Group, 1137 N. Dodge Blvd. Learn tree care and pruning practices with classroom-style learning, hands on practice and take-home materials. Registration is required. 8-11 a.m. Nov. 18. $30. 396-3266, Ext. 22.

Greywater Harvesting Class — Watershed Management Group. The class will include a brief tour of greywater harvesting, followed by an introduction to greywater harvesting and information about the rebate. Register online. 9 a.m.-noon. Nov. 18. 396-3266.

Master Gardener: Glorious Cold-Weather Gardens — Eckstrom-Columbus Public Library, 4350 E. 22nd St. Ideas for a wintertime garden. 10-11:30 a.m. Nov. 18. 594-5280.

How to Prune — Murphy-Wilmot Public Library, 530 N. Wilmot Road. Learn what tools to use, how and why to make pruning cuts, and correct times to prune. Ages 12 and up. 10-11:30 p.m. Nov. 18. 594-5620.