Troubleshooting
Pacific Dogwood problems — and how to fix them
Pacific Dogwood (Cornus nuttallii) 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.
Crown canker and Phytophthora
Cornus nuttallii is highly susceptible to crown and root rot caused by Phytophthora species outside its ideal conditions; excellent drainage and a well-prepared, organic-rich planting site with no waterlogging are the primary preventive measures.
Dogwood anthracnose (Discula destructiva)
This species is particularly vulnerable to anthracnose, which has devastated wild Pacific dogwood populations; maintain vigorous trees with consistent moisture and air circulation, and promptly remove any blighted wood.
Establishment failure outside Pacific Coast climate
Pacific dogwood is notoriously difficult to establish in continental or eastern climates with hot, dry summers; select a cool, humid, maritime-influenced site and water reliably — or choose the more adaptable Cornus florida or Cornus kousa instead.
Prevent pacific dogwood problems before they start
Most pacific dogwood issues are care-mismatch, not bad luck. Dial in the basics:
Pacific Dogwood problems — FAQ
Why is my pacific dogwood crown canker and phytophthora?
Cornus nuttallii is highly susceptible to crown and root rot caused by Phytophthora species outside its ideal conditions; excellent drainage and a well-prepared, organic-rich planting site with no waterlogging are the primary preventive measures.
Why is my pacific dogwood dogwood anthracnose (discula destructiva)?
This species is particularly vulnerable to anthracnose, which has devastated wild Pacific dogwood populations; maintain vigorous trees with consistent moisture and air circulation, and promptly remove any blighted wood.
Why is my pacific dogwood establishment failure outside pacific coast climate?
Pacific dogwood is notoriously difficult to establish in continental or eastern climates with hot, dry summers; select a cool, humid, maritime-influenced site and water reliably — or choose the more adaptable Cornus florida or Cornus kousa instead.