Stop the flop by doing this! The Chelsea chop, works every time! You can do this with a lot of perennials, but it works really well with sedum to prevent flopping. You can cut the entire plant back, but by doing half of the stems in an organic pattern, you’ll have staggered bloom times and a prettier plant. Here’s a list of what to chop next spring: Achillea (Yarrow) Asters Baptisia (light chop only very early or just pinch — NOT a midsummer chop) Bee Balm (Monarda) Campanula (tall varieties) Ca