I live in mid Michigan. While working on a roof near home, I noticed that there was river cane in their garden. I asked the home owner and he told me it was "Arundinaria gigantea".The home owner said that it seems to die so he cuts it down. I would like to know if that is in fact the rivercane used for arrows and atlatals. If so do you cut and use one years growth 7'to8' or let it grow for two seasons.