Troubleshooting
Arizona Cypress problems — and how to fix them
Arizona Cypress (Cupressus arizonica) is generally forgiving once you match its basics, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Coryneum canker in humidity
Branch dieback and resin bleeding are common where summers are humid or soils stay wet; this species does best in dry climates.
Root rot from too much water
Yellowing and decline follow overwatering or wet soil; keep it dry and well-drained once established.
Bagworms
Spindle-shaped silk bags strip foliage; pick off bags by hand or treat early when larvae are active.
Spider mites
Hot dry spells can bring mites that bronze the foliage; monitor and hose down in summer.
Prevent arizona cypress problems before they start
Most arizona cypress issues are care-mismatch, not bad luck. Dial in the basics:
Looking for arizona cypress in general rather than its problems? Read the full arizona cypress care guide — light, water, soil and feeding.
Arizona Cypress problems — FAQ
Why is my arizona cypress coryneum canker in humidity?
Branch dieback and resin bleeding are common where summers are humid or soils stay wet; this species does best in dry climates.
Why is my arizona cypress root rot from too much water?
Yellowing and decline follow overwatering or wet soil; keep it dry and well-drained once established.
Why is my arizona cypress bagworms?
Spindle-shaped silk bags strip foliage; pick off bags by hand or treat early when larvae are active.
Why is my arizona cypress spider mites?
Hot dry spells can bring mites that bronze the foliage; monitor and hose down in summer.