Solidago vaseyi - Atlantic goldenrod

Height: up to 4'
Spread: 1.5’ to 2.5’
Light Needs: full sun to part shade
Water: average
Flower color: Yellow
Bloom time: September to October

The leaves on the stalks of this goldenrod grow smaller from bottom to top. The branches of the flower cluster tend to curve down. It spreads slowly with rhizomes but is not aggressive. This species is a good choice for a shady garden or naturalizing in a woodland. Like all goldenrods, it is attractive to a wide assortment of insect pollinators. Birds eat the seeds. Deer resistance is moderate. 

It is worth noting that goldenrods do not cause hay fever. The lightweight, air-borne pollen grains of plants like ragweed cause hay fever. Goldenrod pollen is comparatively heavy and sticky. It is moved from flower to flower by insects.