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Yellow and browning leaves

The leaves on the bottom of my columbine are turning yellow and brown. They did have aphids earlier but they don't seem to be a problem now. I am worried that I might loose the whole plant.
Submitted by BHGPhotoContest


Thanks for writing. Without being able to see your columbine in person, I can't say for sure what the problem is. If they're the oldest leaves, it may simply be old age. Or the yellowing could be a sign that the columbine is suffering from soil that's too wet or too dry -- or if from any other sort of root damage.

Also: Columbines are typically short-lived plants; each plant lives two or three years and after that it goes away. But if you let your columbines produce seed, you should always have a supply of fresh, strong plants.

---Justin, Senior Garden Editor,

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