Is it all right to cut the stalks on Hosta plants when the flowers are done?

You can cut them off at any point and time, including when they are flowering, just watch out for the bees. It will not hurt the plant at all. I do this all the time with mine. You can cut them off at any level you want to. Flowers are not really necessary on them as they grow new plants by spreading out their roots. If you are wondering about splitting the plants, you can also do that at any point and time. Just be forwarned that the newly split hostas that you are going to plant elsewhere will look absolutely crappy at this time of year after you plant them (they will look like they are gonna die, they more than likely won't). No worries, they will look beautiful next year, though.

FlowersBirthday FlowersSympathy Flowersit doesn't hurt mine in my opinion
Reply:yes, i do it all the time and they are fine.
Reply:I never cut them until after the first frost. Then I dig them up as well.
Reply:I agree wait a while, in the fall you can dig them up, cut them down vertically with roots on both pieces and replant again separately for the following year.. You can also use the seeds in the dried pods.
Reply:I believe so, and it might even promote better budding the following season. But hostas are so hardy, I don't think it would hurt the plant at all.
Reply:only a fourth off the tops and wait till a little later in the yearflower