Scan down to What Grows Under Pine Trees. I think there is a couple posts on your zone.

Your new home sounds so beautiful. I have a lot of old trees too but they're all decidous. Good Luck
oakleif

Contrary to what you might hear if your pine is cut high and it must be if you want to plant under it, hosta will grow there. Never just water the hosta. The roots of the tree will grow toward the water and choke it out.

Bloodroot and American ginger.

Forget me nots,pulmonaria,phlox divaricata, foam flower