Troubleshooting
Brewer's Weeping Spruce problems — and how to fix them
Brewer's Weeping Spruce (Picea breweriana) is generally low-drama, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Summer desiccation and drought stress
The most common cause of failure in cultivation; the long pendant branchlets have a high surface area and are extremely vulnerable to hot, dry or windy conditions, causing rapid needle browning. Shelter from drying east and south-east winds and mulch deeply.
Spruce aphid (Elatobium abietinum)
Green aphids feed on needles through winter and cause sudden widespread needle drop in late winter and spring; damage is often only noticed once needles fall. Apply a systemic insecticide in autumn or use a winter wash before bud break.
Prevent brewer's weeping spruce problems before they start
Most brewer's weeping spruce issues are care-mismatch, not bad luck. Dial in the basics:
Brewer's Weeping Spruce problems — FAQ
Why is my brewer's weeping spruce summer desiccation and drought stress?
The most common cause of failure in cultivation; the long pendant branchlets have a high surface area and are extremely vulnerable to hot, dry or windy conditions, causing rapid needle browning. Shelter from drying east and south-east winds and mulch deeply.
Why is my brewer's weeping spruce spruce aphid (elatobium abietinum)?
Green aphids feed on needles through winter and cause sudden widespread needle drop in late winter and spring; damage is often only noticed once needles fall. Apply a systemic insecticide in autumn or use a winter wash before bud break.