Fruit Tree
Katy Apricot
Prunus armeniaca 'Katy' · Rosaceae
Also called: Katy (low-chill apricot)
Katy Apricot (Prunus armeniaca 'Katy') is a moderate-water fruit tree well suited to Tucson and the low desert. It thrives in full sun, with a moderate to fast growth rate. Expect soft pink to white blooms Very early spring.
Katy Apricot at a glance
- Water use
- Moderate (established)
- Sun
- Full sun (6+ hours).
- Mature size
- 12-20 ft tall and wide; commonly kept to 8-12 ft by pruning.
- Growth rate
- Moderate to fast
- Bloom
- Soft pink to white, Very early spring (February-March); self-fruitful (no pollinizer required). Fruit ripens early - late May to early June in Tucson, ahead of peak summer heat.
- Cold hardiness
- Low chill (~350-400 hours) - one of the more dependable apricots for the low desert. Cold-hardy and frost-tolerant when dormant, but its very early bloom is occasionally caught by late frosts; protect open blossoms if a hard frost threatens.
- Soil
- Prefers deep, well-drained loam; tolerates clay if drainage is adequate. Handles alkaline desert soils with occasional micronutrient supplementation.
- Native range
- Apricot species native to central/eastern Asia; 'Katy' is a low-chill cultivar selected for warm-winter climates.
- Best used as
- Edible fruit (fresh, dried, preserves - large freestone), Early-season home orchard tree, Spring ornamental bloom
- Wildlife
- Early blossoms are an important nectar source for bees; ripe fruit attracts birds.
- Toxicity
- Fruit flesh is edible/non-toxic. Pits/seeds and leaves contain cyanogenic compounds (amygdalin) - do not let pets or children chew seeds or wilted leaves.
How to grow Katy Apricot in Tucson & the low desert
Watering
Deep, infrequent irrigation to 2-3 ft; about weekly in summer, reduced in cooler months and during dormancy. Maintain steady moisture from bloom through harvest to prevent fruit drop and improve size.
Fertilizer & nutrients
Apply a balanced fruit-tree fertilizer with nitrogen in late winter before bud break and again after fruit set. Iron/zinc chelates correct chlorosis on alkaline Tucson soils. Avoid late-season nitrogen.
Pruning & care
Prune yearly in late winter/early summer to an open-center (vase) form; apricots fruit on spurs and one-year-old wood, so renew fruiting wood and remove crowded/dead branches. Light summer pruning helps control vigor and size.
Notes
One of the best-performing low-chill apricots for Tucson - a large, flavorful freestone that ripens early before extreme heat, and is self-fruitful so a single tree will crop. Main risk is its early bloom meeting a late frost. Plant bare-root in January-February.
Sources: University of Arizona Cooperative Extension - Deciduous Fruit and Nuts for the Low Desert; Pima County / Maricopa County Master Gardeners; Dave Wilson Nursery low-chill stone-fruit data