Kermit had it right when he sang, “It’s not easy being green.” He says because he’s green he blends in, people pass him over, and he feels ordinary. And isn’t that pretty much how we think about green in the garden? We take it for granted. We walk over grass without thinking twice. We marvel at the colors of leaves in the fall, but no one begs tourists to come drive the Blue Ridge Parkway in the spring for leaf viewing. In all my years working...