I usually leave them on the beds (sure don't have to put them there) but have to get them off early spring because I have many many tulips, daffs, and hyacinth (earlies). Even with the composting blades on the tractor, the work is ferocious though. My shoulders and back get all muscled up, I rediscover my waist and then I plop on the couch with a whiskey and bonbons and wreck it by spring ...then I do it again!