North American Rock Garden Society (NARGS) - Organization for gardening enthusiasts interested in alpine, saxatile, and low-growing perennials. It encourages the study and cultivation of wildflowers above the treeline or at lower elevations. Delaware Valley Chapter - Southeastern Pennsylvania chapter of the national society. Membership information, event listing, online newsletter, and links to member gardens. Quebec Alpine & Rock Garden Society (SPARQ/QARGS) - Society with activities centered around the Montreal Botanical Garden, aiming to familiarize novice and experienced gardeners with alpine flora and gardens. Information about membership and seed exchange, meeting schedule, and photo gallery [French/English] Ottawa Valley Rock Garden & Horticultural Society - Canadian club presents its meetings and events, membership information, and a photo gallery. Ontario Rock Garden Society - Information about membership, plant sales, activities, and a seed germination guide. Adirondack Chapter - Chapter active in upstate New York. Blog, newsletter archive, events, plant profiles, and member gardens. Mason-Dixon Chapter - Active in Northern Maryland and Southern Pennsylvania. Meeting schedule and current newsletter. Potomac Valley Chapter - Chapter meets in the greater Washingon, DC area. Calendar, archive of bulletins, photo galleries, and a list of good rock plants for the area. Ohio Valley Chapter of the North American Rock Garden Society - Overview of events, information about officers and membership, and an archive of newsletters. Calgary Rock & Alpine Garden Society - Alberta chapter of NARGS. Event listing, photos, membership information, and links. Great Lakes Chapter of the North American Rock Garden Society - Michigan-based group presents brief membership and meeting information. Rocky Mountain Chapter of the North American Rock Garden Society - Meets in Denver, Colorado. Information about events and membership, collection of articles from past newsletters, plant portraits, and resource links. Sierra Rock Garden Society - Based in the Sierra Nevada foothills of California. Information about events, plant portraits, photo gallery, and member-only features. NARGS of Minnesota - Listing of events, photo albums, seed exchange information, and materials available to members. Shasta Chapter of North American Rock Garden Society - Meets in Etna, California. Schedule of meetings and events, listing of committee chairs, and newsletters. NARGS Berkshire Chapter - New England chapter presents its chapter newsletter, member profiles, meetings, and officers.