Dying Colorado Blue Spruce: Drainage Is Key

Question: My 7-foot Colorado Blue Spruce in Rosemount, MN (sandy, clay, alkaline soil) is yellowing at the top with brittle needles. A previous pine died in the same spot. Can it be saved? What's the cause? Is there a hardier pine?

Primary Suspect: Poor Drainage

Colorado blue spruce needs good drainage; "wet feet" is the number one cause of death. Could be insect or disease, but without close examination, it's hard to tell. Take a dying branch and soil sample to your local garden center for diagnosis.

Prognosis

Probably not savable—the top is dead, so it won't be attractive. Start fresh with a species suited to your site conditions.