Click here for Grape Care Guide Vitis labrusca Hybrid - Alden Grape Due to import restrictions we are unable to ship Grapes to California or Oregon. The Alden grape is a deep blue, Concord-colored variety with characteristics similar to California grapes. Its meaty, non-slip-skin texture resembles vinifera grapes, and the flavor is excellent. Joe Volk from Pennsylvania (North American Fruit Explorers) strongly recommended Alden as part of our offerings. Growing Notes: Size & Ripening: Alden grapes are among the largest of the American varieties, ripening a few weeks before Concord. Pruning: Requires close pruning, leaving about half the buds compared to a pruned Concord. Pest & Disease Management: Prone to black rot, so spraying (at least once) or bagging the clusters may be necessary. Primary Use: Best for fresh eating. Growing Requirements: Zones: 5-7 Spacing: 6 feet apart on a 6-foot tall trellis. Climate Adaptability: Thrives in moderate climates with good heat, drought, and sun tolerance. Plant Characteristics: Pest Resistance: Good Disease Resistance: Good Drought Tolerance: Good Heat Tolerance: Good Humidity Tolerance: Fair Sun Tolerance: Good Wet Soil Tolerance: Poor Shade Tolerance: Poor Salt Tolerance: Fair Deer Resistance: Poor Thorns: None Plant Type: Vine Soil Type: Adaptable Edible Type: Fruit Self-Fertile: Yes Fresh for Kids: Excellent Shipping Restrictions:Due to import restrictions, we are unable to ship grapes to California, Europe, or Canada. This information is accurate to the best of our knowledge. Comments and feedback are always welcome.