The Ruby Red Grapefruit Tree is a classic citrus variety known for its large, juicy fruit, attractive pink-to-red flesh, and pleasantly sweet-tart grapefruit flavor. The fruit is excellent for fresh eating, breakfast, juicing, fruit salads, and homemade citrus recipes. Ruby Red grapefruit typically has fewer seeds than older white grapefruit varieties such as Duncan. The fruit develops yellow skin that may show a rosy-red blush as it matures. Its colorful flesh, refreshing juice, and traditional grapefruit flavor make it a popular addition to a backyard citrus collection. The tree has glossy evergreen foliage, fragrant white spring flowers, and attractive fruit that ripens during the cooler months. Plant Ruby Red in full sun and well-drained soil. Because grapefruit is less cold-hardy than Satsuma mandarins and most sweet oranges, this variety requires a protected planting location and dependable freeze protection in North Florida. Plant Details Plant Type: Evergreen citrus fruit tree Botanical Name: Citrus × paradisi ‘Ruby Red’ Common Name: Ruby Red Grapefruit Fruit Type: Pink-to-red-fleshed grapefruit Mature Size: Approximately 12–20 feet tall and wide, depending on rootstock, pruning, and growing conditions Sun: Full sun USDA Zones: Generally Zones 9–11; may be grown in Zone 8b with careful site selection and freeze protection Bloom Time: Spring Flowers: Fragrant white citrus blossoms Harvest Season: Generally winter through spring, depending on weather and growing conditions Fruit: Large, round fruit with yellow skin that may develop a reddish blush Flesh Color: Pink to ruby red Flavor: Juicy and refreshing with a traditional sweet-tart grapefruit flavor Seeds: Usually few seeds Pollination: Self-fruitful; another grapefruit tree is not required Best Pollinator Partners: No pollinator partner is necessary Soil: Fertile, well-drained soil; avoid locations that remain wet Water: Water regularly while establishing, then deeply during extended dry periods Cold Hardiness: Less cold-hardy than Satsumas and sweet oranges; protect during freezing weather ATTRACTS POLLINATORS: Fragrant spring flowers attract bees and other beneficial pollinators Landscape Uses: Home orchards, edible landscapes, backyard citrus gardens, specimen trees, and large containers while young North Florida Growing Note Ruby Red grapefruit can be grown in North Florida, but it requires more winter protection than Satsuma mandarins, kumquats, and many sweet oranges. Plant the tree in a sunny, well-drained location protected from strong north winds. The south or southeast side of a home or other structure may provide additional warmth during cold weather. Avoid low areas where cold air settles. Because Ruby Red fruit normally ripens during winter and spring, freezing temperatures may damage the fruit before it reaches its best flavor and color. Protect young trees during freezes and provide additional protection for fruit-bearing trees when prolonged freezing temperatures are expected. Local Pickup and Wholesale Ruby Red Grapefruit Trees are available for local pickup at our nursery in DeFuniak Springs, Florida. We are not shipping citrus trees at this time. Wholesale availability may be offered to qualified nurseries, landscapers, and other plant-related businesses when inventory allows. Contact us for current sizes, pricing, and availability. Advanced Nursery Growers1911 McLeod RoadDeFuniak Springs, FL 32435Call: 850-391-2228Email: [email protected]