Shrub
Red Tip Photinia
Photinia x fraseri · Rosaceae
Also called: Fraser Photinia, Red Tip, Red-Tipped Photinia
Red Tip Photinia (Photinia x fraseri) is a moderate-water shrub well suited to Tucson and the low desert.
Red Tip Photinia at a glance
- Water use
- Moderate (established)
- Sun
- Best in Tucson with morning sun and afternoon shade. Full, especially reflected, low-desert sun causes severe leaf scorch and sunburn; it is not adapted to intense arid sun.
- Mature size
- Typically 8-12 ft tall and 6-8 ft wide if unpruned; usually kept to 4-6 ft as a hedge.
- Growth rate
- Fast.
- Bloom
- Small white flowers (often considered malodorous); grown mainly for the bright red new-growth foliage that matures to green., Spring (flowers secondary to foliage display).
- Cold hardiness
- Cold-hardy well below Tucson winter lows (tolerates into the teens F), so frost is not the concern. Heat, intense sun, and arid conditions are the limiting factors in the low desert.
- Soil
- Prefers rich, well-drained, slightly acidic soil - poorly suited to Tucson's alkaline soils, which often cause iron chlorosis (yellowing leaves with green veins). Amend with organic matter and improve drainage.
- Native range
- Hybrid of garden origin (P. glabra x P. serratifolia, East Asian parentage); not native to Arizona
- Best used as
- Screening/privacy hedge in milder, partly shaded sites, Foliage accent for seasonal red color, Background shrub
- Wildlife
- Flowers offer minor pollinator value; birds may take fruit.
- Toxicity
- Foliage/seeds in the rose family contain low levels of cyanogenic compounds; generally considered low-toxicity but best kept from being eaten by pets/children.
How to grow Red Tip Photinia in Tucson & the low desert
Watering
Needs consistent moisture - not drought tolerant. Deep water about every 5-7 days in summer heat and every 2-3 weeks in winter; do not let it dry out, but avoid soggy soil that triggers root disease.
Fertilizer & nutrients
Feed with an acidifying/iron-containing fertilizer in spring; soil sulfur and chelated iron are commonly needed in Tucson to correct alkaline-induced chlorosis. Avoid heavy nitrogen, which forces soft growth prone to leaf spot.
Pruning & care
Shear or tip-prune in late winter/early spring (and lightly after flushes) to stimulate the colorful red new growth; avoid heavy shearing in wet conditions to limit Entomosporium leaf spot.
Notes
A poor-to-marginal choice for the low desert - Arizona State University rates it 'difficult in arid regions.' It is prone to Entomosporium leaf spot, iron chlorosis in alkaline soil, and severe sunburn in full Tucson sun. Plant only in a sheltered, afternoon-shaded, well-watered microclimate; better desert-adapted hedges exist.
Sources: ASU (C. Martin) desert landscape plant database (Photinia x fraseri); Clemson HGIC factsheet (Entomosporium leaf spot); Civano Nursery / local Tucson nursery guidance; University of Arizona Cooperative Extension (alkaline soil / iron chlorosis)