It sounds a really lovely woodland garden! I'd love to have hostas but we have a big slug problem; the bergenia seems a bit more slug resistant. We have a big old lacecap as a wall shrub that was here when we came but got the builders' treatment last year; luckily it is recovering -- it must be very robust!

It's good that you can plant spring bulbs, they're always cheerful. We're trying to do that this year but haven't got round to putting in the majority yet -- last year the squirrels destroyed 90% (even the ones they're not supposed to like) and the builders trampled the ones that did come up, so we're putting them under wire mesh, but that takes more time of course so most of them are still languishing in the kitchen.

What's the problem with multiflora roses? Around here it's invasive rhododendrons that are the problem escapees.