Wreath goldenrod is a veritable fountain of gold in late summer and early fall, when axillary flower clusters line its arching, glaucous, purple-stained stems. One of the glories of the eastern North American forest, it should be near the top of the candidates list for any shade or woodland-edge garden (as should S. flexicaulis). It's also well-behaved (although you can expect some seedlings). Our plants are grown here from Rhode Island seed collected by botanist Hope Leeson. Zone 4. Propagated from seed. Deep 3.5-inch pots. Photo: FritzFlohrReynolds, licensed under CC BY-SA 2.0