Wrinkleleaf goldenrod carries arching sprays of golden flowers in autumn, and the branching is loose enough that the plant reads as a spray rather than a solid plume. Solidago rugosa is a native perennial growing 3 to 5 feet tall and 18 to 30 inches wide in full sun, hardy from Zone 4 through Zone 8.
Bloom runs from late summer into fall, overlapping the monarch migration. Goldenrod is a keystone genus and one of the heaviest nectar sources available at the end of the season, drawing bees, butterflies, and a long list of specialist insects. Songbirds take the seed through winter.
Goldenrod does not cause hay fever, despite the reputation. Its pollen is heavy and insect-carried; ragweed blooms at the same time and is the actual culprit.
The leaves are rough and deeply veined, which is where the name comes from. This grows wild in moist meadows and along roadsides, handling a wide range of soils from moist to dry. It spreads by rhizome, so give it room or plan to divide.