Always failing with hibiscus?
I have planted hibiscus shrubs off and on in the past several years. They usually die after a winter or two outside (we do seem to have had bad frosts in the past five years). I do have 3 shrubs left over that are alive but mangy looking with yellow leaves or sickly olive green leaves. I remember that one of them had a scale attack a couple of years ago. Mine never puts out vigorous, healthy, green stems but just a few leaves here and there on existing stems.
I am planning on giving them a shot again this year. They are one of my favorite flowers and thought that it would make a great hedge alongside my neighbor's yard who also loves these flowers. Any special tips on how to be successful?