Arizona Cypress

Native Trees

Hot-Dry Southwest

94 cities

Arizona Cypress (Cupressus arizonica) is a native Southwest conifer with distinctive blue-green to silver-gray foliage and shaggy, reddish-brown bark that peels in strips as the tree ages. It grows in a dense pyramidal or columnar form, making it easy to spot in a landscape. Most homeowners plant it as a windbreak or privacy screen, and it delivers on both fronts faster than almost any other evergreen in the region.

Lifespan

50 to 150 years in managed landscapes, potentially much longer in native, undisturbed conditions with minimal soil compaction.

Mature Size

40 to 70 feet tall with a spread of 15 to 25 feet, though form varies considerably by cultivar. Blue Ice and other ornamental selections tend to stay more compact.

Care & Maintenance

Once established after two to three years, this tree is remarkably drought tolerant and often does better with less water than most homeowners give it. Deep, infrequent irrigation every two to three weeks in summer is plenty for a mature tree. It wants full sun and well-drained soil. Fertilizer is rarely needed and can actually push weak, disease-prone growth.

Common Issues & Threats

Seiridium canker (Seiridium unicorne): This fungal disease is the biggest killer of Arizona Cypress in the Southwest. It enters through wounds or stressed tissue and causes branch dieback with resin-soaked, sunken lesions on the bark. There is no chemical cure. You prune out infected branches well below the canker and keep the tree as stress-free as possible.
Bark beetles: A drought-stressed Arizona Cypress is a magnet for Ips and Phloeosinus bark beetles. By the time you see pitch tubes or sawdust at the base, the infestation is usually advanced. The real fix is managing irrigation during extended dry spells, not spraying after the fact.
Cypress tip moth (Argyresthia cupressella): The larvae of this small moth mine the terminal tips of foliage, causing the tips to turn brown and die. It looks like drought stress or disease but it's insect damage. Heavy infestations on young trees can set back growth significantly.

Pruning Guide

Here's what most people get wrong: Arizona Cypress has no latent buds in old wood, so if you cut back past green foliage, that branch will not regrow. Dead zone cuts are permanent. Do your shaping in late winter before new growth flushes, stick to light tip pruning only, and never remove more than 15 to 20 percent of the canopy in a single season. Leave the interior alone.

Did You Know?

Arizona Cypress produces a natural compound called sabinene that gives the foliage its sharp, resinous scent, and that same chemistry makes the wood highly rot resistant. Some documented specimens in Arizona canyon country are over 500 years old, which is a surprise for a tree most people treat as a disposable fast-grower.

Where Arizona Cypress Is Found

Arizona Cypress is common in 94 of the US communities we cover, across 1 climate regions.

Hardiness Zones 5-9

Queen Creek, AZ Zone 9b Catalina Foothills, AZ Zone 9b Oro Valley, AZ Zone 8b Prescott, AZ Zone 7b Summerlin South, NV Zone 9a Fountain Hills, AZ Zone 9b Anthem, AZ Zone 9b New River, AZ Zone 9b Spanish Springs, NV Zone 7a Boulder City, NV Zone 9b Tanque Verde, AZ Zone 9a Los Alamos, NM Zone 7a

... and 82 more cities

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