I need some speedy screening and bamboo (the non bastard type) seems like the cheapest option. The planting schemes I like are prairie, cottage garden and coastal. I also like that jungly type look with banana trees but the garden is the wrong shape and we live by the sea so I'm not sure apart from ferns and palms that would work.
Would it look weird to have a mixture of grasses, bamboo, foxgloves, agapanthus, verbena, hollyhocks and lavender all knocking about together?