GARDENING Events This Week HALF-BARREL WATER GARDENING. Pima County Cooperative Extension. 4210 N. Campbell Ave. Demonstrations and information sharing take place on Wednesday, May 1 at 9 a.m. (repeat session is at 1 p.m. at Wilmot Library). Call for more information on the free session, 626-5161. HOME AND GARDEN WORKSHOPS. Home Depot. 3689 E. Broadway Blvd. (all stores). Learn how to prepare and lay sod, install an irrigation system, prepare your cooler for the summer and more at free weekend workshops through April. Call for schedule and Home Depot location, 327-3050. PAIN-FREE HORTICULTURE CLASSES. Arthritis Foundation Office. 616 North Country Club Road. 520-917-7070. Don't give up the pleasures of tending your own garden just because of arthritis pain. Gardening and flower arranging maintains joint flexibility. Join the Tucson Botanical Gardens staff on the last Tuesday of the month from 10 a.m. to 11:15 a.m. for a $3 horticulture class. For details call 917-7070. Upcoming HYDROPONIC GARDENERS. UA Agri-Farm Greenhouse. 2031 E. Roger Road. This group meets at noon the second Saturday of every month. Call Bob at 327-8822 or Jo at 751-1005 for information.

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