FAIRFIELD — Take a peek behind the bright orange, green or yellow wrapping of some colorful potted kalanchoes at the local Raley’s grocery store and you’ll find a butter container. It’s Raley’s — and its sister stores, Nob Hill and Bel Air’s — effort to add additional green into the greenery of the floral department. “The upcycled pots are a more eco-friendly option as they eliminate the need to use virgin plastic,” said Lauren Taylor of Terracycle Inc. in an email.