Uncategorized Local Produce By admin July 26, 2014 September 21, 2019 local, Michigan, produce GreenTree Co-op is proud to have a wide selection of local produce during the Michigan Growing season. Right now we’re happy to carry carrots, green beans, wax beans, beets, cukes, yellow and green zucchini, basil, kale, rainbow chard, and more! We are proud to say that all of the produce we carry is certified organic, or no-spray local! Under Construction We’re Social!