South Coast Rec - Irvine, CA | Sunset Zone 22 ; USDA Zone 10a
Vitis ‘Roger’s Red' in August 2025 with full coverage and dense foliage. Pruning reveals the unhealthy inner foliage with chlorosis. Photo: N Lo
University of Arizona - Tucson, AZ | Sunset Zone 12 ; USDA Zone 9b
Vitis californica ‘Rogers Red’ in June 2025 under low irrigation.
Vitis californica ‘Rogers Red’ in August 2025 under low irrigation.
UC Davis - Davis, CA | Sunset Zone 14 ; USDA Zone 9a
Vitis ‘Roger’s Red’ at UC Davis in May 2025. Photo: JA Sisneroz
Vitis ‘Roger’s Red’ at UC Davis in June 2025. Photo: JA Sisneroz
Vitis ‘Roger’s Red’ at UC Davis in July 2025. Photo: JA Sisneroz
Vitis ‘Roger’s Red’ at UC Davis in August 2025. Photo: JA Sisneroz
University of Utah - Logan, UT | Sunset Zone 2b ; USDA Zone 6a
University of Washington - Seattle, WA | Sunset Zone 5 ; USDA Zone 8b
Vitis ‘Roger’s Red’ at UW before pruning, displaying how vigorous individuals of this taxa were even before beginning the irrigation season. Photo: A Keyser-Gibson
Vitis ‘Roger’s Red’ on the low irrigation treatment in July 2025 at UW displaying very vigorous canopy growth. Photo: A Keyser-Gibson
Vitis ‘Roger’s Red’ in October 2025 at the UW site demonstrating its fall foliage. Photo: A Keyser-Gibson