Ruby Red Grapefruit

Citrus x paradisi 'Ruby Red'
Categories:
Citrus  ·  
Grapefruit & Pummelo
Light
Full sun
Water
Deep, regular irrigation; not drought tolerant. For established trees, wet soil 2–3 feet deep beneath and beyond the canopy, then let the upper few inches dry. Water more frequently in summer and less in winter; newly planted trees need closer monitoring.
Size
15-20 ft tall × 15-20 ft wide
Habit
Upright tree – single-trunk
Toxicity
Toxic — Pets & Humans
Description
A subtropical citrus tree producing large, yellow-skinned grapefruit with blush-red flesh and a sweet-tart flavor. Well suited to Phoenix heat with adequate irrigation.
Bloom Time
Spring
Deciduous / Evergreen
Evergreen
Special Features
Edible, Fragrant, Heat Tolerant
Growth Rate
Moderate
Growth Habit
Upright tree – single-trunk
Mature Size
15-20 ft tall × 15-20 ft wide
Flower Color
White
Foliage Color
Dark green
Landscape Use
Container / Patio, Edible / Orchard, Specimen / Accent
Garden Style
Edible Garden
Soil
Alkaline Tolerant, Sandy / Rocky, Well-Drained
Companion Plants
Cool-season sweet alyssum, Rosemary, Society garlic
Toxic — Pets & Humans
Fruit edible to humans; foliage and peel toxic to pets
Care Instructions

Light: Full sun, ideally 8 or more hours daily; young trees benefit from temporary afternoon shade during extreme summer heat.

Water: Deep, regular irrigation; not drought tolerant. For established trees, wet soil 2–3 feet deep beneath and beyond the canopy, then let the upper few inches dry. Water more frequently in summer and less in winter; newly planted trees need closer monitoring.

Soil: Well-drained sandy loam or loam. Tolerates alkaline desert soil, but poor drainage and salt accumulation can cause problems. Keep the root flare exposed and mulch away from the trunk.

Mature size: Typically 15–25 feet tall and wide on standard rootstock; dwarfing rootstocks and pruning can keep trees smaller.

Bloom: Primarily late winter through spring in Phoenix; fruit generally ripens from winter into spring and becomes sweeter with time on the tree.

Evergreen / deciduous: Evergreen.

Growth rate: Moderate; grafted trees often begin bearing within 3–5 years after planting.