dividing and transplanting Salvia penstemonoides
I have a few 3 year-old S. penstemonoides that needed to be moved to make room for something else. I dug them up and discovered that they have very deep thick roots, like multiple taproots. They were easy to divide by hand, and I dug deep holes for replanting in a new position. I'm not sure they will survive, given their deep roots--has anybody ever divided or moved S. penstemonoides before? I'm just wondering if I can expect them to survive.