When we lived up north in NY near Lake Ontario, we had buddelias. We cut them back to about 18" in early spring, as soon as we saw signs of life...
Oh sure, ducks come up with a great tape which repairs everything from roofing to car radiators, and the frogs jump on the bandwagon and copy-cat....
Looking that cool, you'll never get any yard work done. Passersby will be asking for your autograph and wanting to snap a photo with you! Tom...