Every year my perennials grow up. And then one day, maybe some rain, they all just flop over and look shit. They go all bedraggled and sad. I do have some little bamboo arches to put next to them to hold them up but then they sag over those too. Is there any way to get my bed to look lush and full and not floppy and sad? Every year I think my tiny flower bed will look nice and every year it looks shit.