Why are my columbine suddenly uprooting themselves?

Question

It’s like a mound of dirt has erupted in the middle of the plant and all the stalks have fallen over from the middle all around it.

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Answer 1

This appears to be the damage of a burrowing creature. Here are some articles to control groundhogs, moles, and voles:

https://www.gardeningknowhow.com/plant-problems/pests/animals/get-rid-groundhogs.htm

https://www.gardeningknowhow.com/plant-problems/pests/animals/mole-control.htm

https://www.gardeningknowhow.com/plant-problems/pests/animals/vole-control.htm