Star Ruby Grapefruit Tree - Citrus x paradisi

Star Ruby Grapefruit Tree (Citrus x paradisi)

Bring homegrown citrus to your landscape with the Star Ruby Grapefruit Tree, a space-conscious variety that delivers stunning ruby-red fruit on a manageable frame. This ornamental-meets-productive tree features glossy foliage, delicate white blooms, and sweet-tart grapefruit that's perfect for fresh eating or juice. When you buy Star Ruby Grapefruit Tree online from Florida Plant Nursery, you're investing in years of fresh morning harvests right from your backyard.

Landscaping Uses

The Star Ruby's naturally compact growth habit makes it ideal for patios, balconies, and small residential spaces where full-size fruit trees won't fit. Plant it in sunny locations where it becomes a living focal point with seasonal interest—from fragrant flowers to jewel-toned fruit. Its dense canopy also works beautifully as a privacy screen or backdrop planting in Mediterranean and tropical-style gardens.

Specifications

Height: 12–15 feet
Width: 10–12 feet
Growth Rate: Moderate
Sun: Full sun (6+ hours daily)
Water: Moderate; avoid overwatering
Soil: Acidic, well-draining
USDA Zones: 9–11

Why Homeowners Love It

• Produces large, vibrant red fruits with tangy-sweet flavor perfect for eating fresh
• Stays manageable in size, thriving in containers and small yards
• Offers year-round visual appeal with emerald leaves and fragrant spring flowers
• Self-fertile and adaptable to both outdoor gardens and indoor growing with supplemental lighting

Planting & Care

Position your tree in full sun to maximize fruit production, and plant it in acidic, well-draining soil to support healthy root development. Water young trees once or twice weekly, being careful not to create soggy conditions that lead to root rot. Apply acidic fertilizer three to four times annually for sustained growth and flowering. While the tree tolerates occasional frost, protect it from sudden cold snaps to prevent leaf drop. For indoor trees, hand-pollinate blooms using a fine-tipped paintbrush by gently swirling it through each flower's center daily until blooms fall and fruit formation begins.