アメリカからカナダ、イギリス、日本まで会員をもつ、国際的なプロムローズの愛好家団体。日本とは浪華さくらそう会と交流がある。

NARGS is for gardening enthusiasts interested in alpine, saxatile, and low-growing perennials. It encourages the study and cultivation of wildflowers that grow well among rocks, whether such plants originate above treeline or at lower elevations. Through its publications, meetings, and garden visits, NARGS provides extensive opportunities for both beginners and experts to expand their knowledge of plant cultivation and propagation, and of construction, maintenance, and design of special interest gardens. Woodland gardens, bog gardens, raised beds, planted walls, container gardens, and alpine berms are all addressed.