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Published October 28, 2011, 12:00 AM

Hortiscope: In sandy soil, water frequently but not long

Q: We planted 10 Black Hills spruce trees this spring. Most are doing very well, but three have several brown and brittle branches with no needles. My husband had the sprinkler system on for 2½ hours tonight and watered the trees three days ago for about an hour. I think they are being extremely overwatered, which is killing them.

By: Don Kinzler, INFORUM

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