Grape (Jupiter)

Jupiter grapes are a high-quality seedless (some may have soft edible seeds present) table grape variety created by the University of Arkansas. Introduced in 1998, this interspecific hybrid is well-known for its distinctive flavor, which blends a floral "Muscat" profile with a sweet, mild "Labrusca" (similar to Concord) taste.  The Jupiter grape features large, oval, seedless blue-purple berries that grow in substantial clusters.  It is a delightful table grape that can be enjoyed fresh, frozen, or turned into juice and wine.  The berries also exhibit a strong flowery "Muscat-type" aromatic profile that is present in the wines produced from them.

The vines can be trained to grow upright.  They possess moderate to strong resistance against various fungal diseases. 

Fruit Characteristics

• Appearance: Large, oval berries that transition from reddish-blue to a deep, dark blue or blue-black when fully ripe.

• Texture: Semi-crisp and crunchy with "non-slip" skin (meaning the skin does not easily separate from the pulp).

• Flavor: A distinct blend of muscat and tropical fruit notes, often described as having hints of lychee or cotton candy.

• Harvest: Early to mid-season ripening, typically from mid-August through September. 

Growing & Cultivation

• Hardiness: Generally hardy in USDA Zones 5–9, tolerating temperatures down to approximately -12°F.

• Planting Requirements:

  • Sunlight: Requires full sun (6–8 hours daily).

  • Soil: Prefers well-drained, fertile soil with a pH between 5.5 and 6.5.

  • Pollination: Self-pollinating; a single vine can produce fruit without a partner.

• Productivity: Highly productive and vigorous; it is resistant to fruit cracking.

• Disease Resistance: Shows moderate to strong resistance to common fungal diseases like black rot and powdery mildew.