Wholesale citrus

Diller Arizona sweet orange

Citrus sinensis ‘Diller’

Also known as Arizona sweet orange · Diller orange

A productive Arizona-origin sweet orange chosen primarily for abundant, richly flavored juice in the Salt River Valley.

EdibleArizona selectionJuice orangeProductive

Landscape layersLower canopy

Mature sizeUsually 10–20 ft tall and wide; rootstock and pruning change final size

Climate fitUrban core · USDA 9b–10a · Valley suburbs · USDA 9a–9b · Desert outskirts · USDA 8b–9b

Special categoriesEDIBLE

Hardiness guidanceTypically USDA 9–11; frost tolerance varies by cultivar and microclimate

Winter chillNone

Typical harvestLate fall through early spring in the low desert

Before you plant

These conditions determine whether it will thrive.

Required microclimatePlacement is part of the growing system.

Zone B — sun morning and afternoon on the open south-facing side. Tough enough for full exposure and more productive for the extra hours.

Right plant, right place

Plant in fast-draining soil with the graft union above grade. Keep mulch away from the trunk and avoid lawn irrigation at the root crown.

Best regional fit: Urban core · USDA 9b–10a, Valley suburbs · USDA 9a–9b, Desert outskirts · USDA 8b–9b.

Light

Full sun; young trunks and exposed scaffold limbs need sunburn protection

Water

Deep, regular irrigation with drying between cycles; expand the wetted zone as the canopy grows

Fruit set

Self-fruitful

Harvest

Juice first; also useful for fresh eating

Planting & stewardship

1
Verify both the named cultivar and rootstock on the nursery tag before planting.
2
Whitewash newly exposed bark and protect cold-sensitive trees during hard freezes.
3
Feed in several light applications during the active season rather than one heavy dose.
4
Let fruit color and flavor—not a calendar date alone—confirm harvest readiness.