It's no surprise that Buchanan's is celebrating its 30th year in the Heights area, with its winning formula of hiring friendly, knowledgeable staff and its emphasis on native plants and organic gardening. Customer service is key, from handy take-home reference sheets about seasonal plants to accessible and communicative staffers. Sprinkled throughout Buchanan's are whimsical and colorful metal sculptures, garden accents, decorative signs and pottery, making it easy to imagine your own backyard escape. Buchanan's offers regular seminars and workshops on topics as varied as setting up drip irrigation, prepping a fall garden and creating a butterfly habitat, and helps sponsor the nonprofit organization Urban Harvest, which fosters community gardens, education and farmers' markets.