Hi there, I just purchased a MN hardy hibiscus plant before Mother's Day...I actually bought 4 plants. I bought larger-more mature plants that were already pruned from a blooming season or two because they had a sturdy base with pruned off growth from last year. I planted 2 of the plants near my house and two further away from the house out in the yard that is more exposed to the elements. Last night there was a frost and the two plants near the house came through the cold temps just fine with just a little browning on the edges of the leaves, but the two that I planted further out really got nipped. The leaves are brownish...not green and the stems are soft-ish. Ugh! I am certain that it didn't get cold enough to freeze the roots since I had a layer of mulch around the base, but I think that the foliage above ground is in tough shape. What should I do? Should I trim back the parts that were subject to the frost? Should I leave it and see what happens as the temps get warmer to see if it is able to bounce back? Did I kill the plant? Thank you for any help and guidance that you can offer. I was perhaps foolish to plant these before the middle of May, but since they were mature plants and a MN hardy specimen that says it can tolerate -30 in the winter, I just went for it. Thanks again, Katherine Norrie Northfield, Minnesota