I am in the midwest US, and need to split some hosta plants at the roots.

Should it be done, say, this week? Or wait 'till next spring??

Thx,
"Puddin' Of The Dark-Grey Thumb"

"Well, there's two trains runnin'.
Ain't neither one goin' my way.
One run at midnight,
the other run just before day."
- from "Still A Fool", Muddy Waters, maybe 1949