The program, which is open to the public, will provide tips on selection, placement, watering, feeding and pruning of the roses. Presenter Jo Ann Dillenbeck, an experienced rose enthusiast, will provide advice on how to rejuvenate older plants, increase plant blooming and how to manage it all at the same time.

"Jo Ann manages her own extensive garden with the additional hurdle of working from a wheelchair," said Brian Houck, manager of the Botanic Garden. "She has much common sense to share and practical tips on how to ease the labor of rose caretaking."

The pruning program is part of a quarterly series started earlier this year by the Botanic Garden, which is located near the center of the campus at 18111 Nordhoff St. in Northridge.

"The free seasonal gardening series is an example of our efforts to make the Botanic Garden a vital resource for the community," Houck said.

The classes are from 9 to 10:30 a.m. in the garden and require a reservation. To make a reservation, call Houck at (818) 677-3496.

Cal State Northridge's Botanic Garden is operated by the university's Department of Biology and serves as a field site for botany, entomology, photography, painting and other classes. In addition to outdoor landscape and natural botanic environments, the garden also features a greenhouse where rare and unusual plants are grown. The garden is open to the community.