just your typical spike sold everywhere. It obviously got frost as you can see.. too bad because it looked great. I have a garden rock light which highlighted it at night and it was a show stopper. Just how big can these things grow? It looks like hell. What kind of root system do they have? Will it tear up all my perennials and spring bulbs when we take it out? Can it just be chopped at soil level and resprout? I hate the thought of having to redo the whole bed.