Troubleshooting
Upright Plum Yew problems — and how to fix them
Upright Plum Yew (Cephalotaxus harringtonia 'Fastigiata') 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.
Scale insects
Occasionally susceptible to scale on foliage. Treat with horticultural oil in spring.
Root rot in wet soil
Poor drainage causes root decline. Ensure adequate soil drainage before planting.
Mealybugs
Mealybugs can colonise stems in warm, sheltered conditions. Remove with a cotton swab dipped in rubbing alcohol or use insecticidal soap.
Slow establishment
Takes a few seasons to establish and begin active growth. Consistent moisture in year one aids rooting.
Foliage browning from de-icer salt
Salt spray from roads or paths can cause foliage browning. Avoid planting directly adjacent to salted surfaces.
Prevent upright plum yew problems before they start
Most upright plum yew issues are care-mismatch, not bad luck. Dial in the basics:
Upright Plum Yew problems — FAQ
Why is my upright plum yew scale insects?
Occasionally susceptible to scale on foliage. Treat with horticultural oil in spring.
Why is my upright plum yew root rot in wet soil?
Poor drainage causes root decline. Ensure adequate soil drainage before planting.
Why is my upright plum yew mealybugs?
Mealybugs can colonise stems in warm, sheltered conditions. Remove with a cotton swab dipped in rubbing alcohol or use insecticidal soap.
Why is my upright plum yew slow establishment?
Takes a few seasons to establish and begin active growth. Consistent moisture in year one aids rooting.
Why is my upright plum yew foliage browning from de-icer salt?
Salt spray from roads or paths can cause foliage browning. Avoid planting directly adjacent to salted surfaces.