GARDENING Events This Week 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. Announcements COMMUNITY GARDENS OF TUCSON. Start Fall gardening in a plot to suit your needs and a location near you and share seeds, plants and experience with other gardeners. $10 a month covers water costs. Call 795-8823 to reserve a plot.