My small thyme plants (plants last Spring) are on the edges of a west-facing, well-drained bed. They've looked very happy this year, but now the bases are getting woody and I'd like to prune them back.
I'm worried about doing that before the frosts hit, in case I kill them off.
Should I wait 'til Spring now?
Someone please remind me - does thyme flower on the old wood or the new?
And come to think of it, what about potentilla fruticosa? Didn't get many flowers this year so I'm wondering if I ought to not prune it at all this year...