I agree with brenda. A systemic treatment added now while you still have some leaf will help. Another treatment in spring after the shoots begin to open should help although it won't deter rabbit/deer browsing. You might also want to check for vole activity. If you have them and they've chewed off much of the roots the plant will stop producing leaves while it grows more root system. You can lift these plants to check for pest activity and replant them. Use a spading fork to loosen the soil and lift the plants so you can check the roots.

He lives in the Port Orchard area(less then a mile from me). He was the reason I started collecting hostas and checking out this part of the GW forums. He has a terrific garden, grows and introduces great new hostas and is a nice, friendly, generous gardener. He offers public tours through the Northwest Perennial Alliance, a garden club with many tours(of which I am included). Check them out and join if you're interested in viewing them up close.

i am touched ... wait.. lets not go there ... i had a neighbor at the old house.. that had one of the undulatas under a black walnut.. like 12 inches from the trunk .. and they did just fine... they didnt water like a hosta gardener would.. so they werent gigantic or anything... thats my knowledge base about such welcome back... ken PS; just plant them .. they arent going to disappear overnight ... you will know if they struggle next spring ...

A lovely tranquil setting and an apt summary of hosta virtues. How wonderful that those castoffs found a good home. You are at great advantage over many here in that you can rearrange them to your heart's content without the help of 3 husky teenage boys and a snow sled. ;) Thank you for sharing.