allium purple sensation and irises taking over my small garden
i planted a few allium purple sensation bulbs a few years ago and they have almost taken over the garden. i think all the seed heads are coming off as soon as they are finished this year. how do i get rid of the unwanted seedlings ?. my irises are also expanding like they are on speed. i put them in last year and only one flowered, but now there are several off-shoots. my garden looks like an overgrown lawn full of bulblets.