Oro Blanco grapefruit tree with large pale greenish-yellow fruit among glossy green leaves

Oro Blanco Grapefruit

Citrus 'Oroblanco'
Categories:
Citrus  ·  
Grapefruit & Pummelo
Light
Full sun
Water
Deep, regular irrigation; not drought tolerant. Wet the root zone 2–3 feet deep, allowing the upper few inches of soil to dry between waterings. Established trees may need watering every 7–14 days in summer and every 3–6 weeks in winter; adjust for soil, heat, and rainfall. Newly planted trees need more frequent watering.
Size
15-20 ft tall × 15-20 ft wide
Habit
Upright tree – single-trunk
Toxicity
Toxic — Pets
Description
Oro Blanco is a grapefruit-pummelo hybrid prized for sweet, mild, nearly seedless fruit with pale flesh and a thick rind. Fruit can remain greenish-yellow when ripe.
Bloom Time
Spring
Deciduous / Evergreen
Evergreen
Special Features
Fragrant
Growth Rate
Moderate
Growth Habit
Upright tree – single-trunk
Mature Size
15-20 ft tall × 15-20 ft wide
Flower Color
White
Foliage Color
Green
Landscape Use
Container / Patio, Edible / Orchard, Shade Tree
Garden Style
Edible Garden
Soil
Alkaline Tolerant, Sandy / Rocky, Well-Drained
Companion Plants
Cool-season calendula, Nasturtium, Sweet alyssum
Toxic — Pets
Toxic to pets if ingested
Care Instructions

Light: Full sun, ideally 6–8 hours daily; light afternoon shade benefits young trees during Phoenix summers.

Water: Deep, regular irrigation; not drought tolerant. Wet the root zone 2–3 feet deep, allowing the upper few inches of soil to dry between waterings. Established trees may need watering every 7–14 days in summer and every 3–6 weeks in winter; adjust for soil, heat, and rainfall. Newly planted trees need more frequent watering.

Soil: Well-drained sandy loam preferred; tolerates alkaline desert soil if drainage is good. Avoid standing water, keep the root flare above grade, and mulch without covering the trunk.

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

Bloom: Fragrant flowers in late winter to spring, usually February–April in Phoenix; fruit generally ripens from late fall through winter.

Evergreen / deciduous: Evergreen.

Growth rate: Moderate.