Hi, two questions actually. Wanted to plant some bambusa multiplex in an area 40' x 20" x 20". Is it possible to buy a large plastic pot, cut the bottom out and plant the bamboo in that instead of the rhizome barrier? Figured the taper of the pot would be perfect as well as the thickness of the plastic. And second question, if I intersperse with lord island palms, will the bamboo kill the palms? Thanks very much for any and all help!