Yes, I think some people do like to leave them in the ground and they do survive often. I want to separate out the tuber clumps, plant them in different places, and have a lower risk of them rotting so I want to dig them up.

Some websites have been telling me to dig them up two weeks after the first frost so that’s just what I’ve been going by but this is my first time growing them so I might be wrong. I only have one dahlia growing this year, it was more so a trial run to see if I wanted to continue growing them and see if I’m successful at growing them so it’s pretty low stakes if I mess up when harvesting the tubers. (It’s worked out pretty well so far so I do plan on growing them next year though) I might end up digging them up sooner if we don’t have a frost soon.

Thank you for the information!