Plants are flopping, and leaves are dropping the back garden is permitting go. But when we may perhaps have the urge to check out “garden cleanup” off the to-do checklist with 1 heroic press, it is not like “mop kitchen ground.” There’s a precious education and learning, and a ton of everyday living, tucked concerning and beneath all those people fading bits. As Peter Bevacqua, a garden designer in Claverack, N.Y., has discovered, a conscious cleanup can yield internet site-certain, backyard garden-strengthening ideas — and also seasonal snippets you can convey indoors, to savor a minor more time. Get out your notebook: It’s prime review time. Mr. Bevacqua has been…