Tree
Italian Cypress
Cupressus sempervirens · Cupressaceae
Also called: Mediterranean Cypress, Tuscan Cypress
Italian Cypress (Cupressus sempervirens) is a low-water tree well suited to Tucson and the low desert. It thrives in full sun, with a moderate to fast growth rate. Expect n/a (conifer) blooms spring.
Italian Cypress at a glance
- Water use
- Low (established)
- Sun
- Full sun
- Mature size
- Narrow columnar form 40-60 ft tall but only 3-6 ft wide ('Stricta'/'Glauca' types); a dramatic vertical accent.
- Growth rate
- Moderate to fast
- Bloom
- N/A (conifer), Spring (non-showy cones)
- Cold hardiness
- Cold-hardy through Tucson winters; tolerates low temperatures well below typical 9a/9b lows. No frost protection needed.
- Soil
- Adaptable to alkaline desert soils; demands excellent drainage. Avoid wet, heavy soils which promote root rot.
- Native range
- Eastern Mediterranean and western Asia
- Best used as
- Vertical accent, Formal tall screen/hedge, Driveway/entry framing, Mediterranean-style landscapes
- Wildlife
- Provides nesting and roosting cover for birds; limited food value.
- Toxicity
- Not considered significantly toxic to people or pets.
How to grow Italian Cypress in Tucson & the low desert
Watering
Drought-tolerant once established but appreciates deep, infrequent water for dense foliage. Soak to 2-3 ft roughly every 2-3 weeks in summer, monthly in cooler months. Avoid daily/shallow watering and overhead spray, which encourage disease.
Fertilizer & nutrients
Low needs; a light spring application of slow-release nitrogen supports dense green growth. Correct iron chlorosis with chelated iron in highly alkaline soil.
Pruning & care
Little pruning needed because of its naturally narrow form; remove dead or browned interior branches and shear lightly only to shape. Do not cut back into bare old wood, which does not resprout.
Notes
Classic Mediterranean exclamation-point tree common in Tucson. In the low desert, watch for spider mites (especially on stressed or dusty trees) and cypress/seiridium canker, both worsened by drought stress or over-watering; bagworms can also occur. Maintain even, deep watering and good air circulation. Plant in groups or rows for formal effect.
Sources: University of Arizona Cooperative Extension; AMWUA Landscape Plants for the Arizona Desert; Arizona-Sonora Desert Museum