Black-Blue Seedless Grape

Summer Royal is a black, seedless table grape with large, firm berries, a pleasant aroma, and a sweet Muscat flavor. The USDA-ARS selection is proprietary, and its fruit ripens in late August in California's San Joaquin Valley. ## Growing Conditions Choose a sunny site and train the vine on a sturdy trellis or fence. Newly planted vines need regular water while their roots establish; older vines may need supplemental irrigation in prolonged dry weather or very well-drained soil. [UC Davis Foundation Plant Services variety record](https://fps.ucdavis.edu/FGRfamilies.cfm?varietyid=2103) · [USDA-ARS Summer Royal profile](https://www.ars.usda.gov/ARSUserFiles/ott/New%20Website/Office%20of%20Technology%20Transfer%20%28OTT%29/Metrics%2C%20Materials%2C%20Success%20Stories/OTT%20Spiral%20Flipbook%201.8.20.pdf) · [UMN home-garden grape guide](https://extension.umn.edu/garden-and-home/yard-and-garden/gardening-in-minnesota/growing-grapes-home-garden) ## Garden Use Grow Summer Royal for fresh table fruit. UC Davis identifies it as a black table grape and records the exact selection as proprietary; USDA-ARS describes large, firm berries with a pleasant aroma and sweet flavor. ## Maintenance Provide strong support and prune the vine annually during dormancy. Keep the canopy open to improve fruit exposure and air movement.