Seeds of Geum, Water Avens bog plant. Other names for the plant are nodding avens, drooping avens, sure-all, water flower and indian chocolate. It grows in bogs and damp meadows and produces nodding red flowers from May to September. a native perennial of slow-draining or wet soils and can tolerate mildly acidic to calcareous conditions in full sun or under partial shade. Pollinated primarily by bees, less often by flies and beetles. As the flower matures, elongation of the stamens ensures it self-fertilizes if not already cross-pollinated. The blooming period occurs from late spring to mid-summer and lasts about 1-2 months. This herbaceous perennial wildflower is about 1-2 feet tall. The preference is partial to full sun, The preference is partial to full sun, wet to moist conditions, and cool to mild summer temperatures. Various kinds of soil are tolerated. Hardiness zone 2a-7b.