Solidago (Goldenrod)

Native Goldenrod (Solidago species) is one of the most important plants you can grow for late-season pollinators. Tall plumes of bright yellow flowers open in August and carry through October, right when most summer perennials are finished and bumblebee queens are racing to build fat stores before winter.

Goldenrod is the single most important late-season nectar and pollen source across much of North America. Expect heavy traffic from bumblebees (especially queens provisioning for overwintering), native solitary bees, honey bees, migrating monarch butterflies, and beneficial predatory wasps. As flowers finish, the feather-light seed heads feed goldfinches, juncos, and other small songbirds into winter.

Important myth-buster: goldenrod does not cause hay fever. Its pollen is heavy and insect-carried. The culprit blooming at the same time is ragweed.

Heads up on spread: wild-type goldenrod spreads by underground rhizomes and can colonize an area over time. It is spectacular in meadow plantings, pollinator strips, hedgerow edges, and big naturalistic beds. In a tidy border, install a root barrier or divide every few years to keep it in bounds, or choose a clumping named selection like 'Baby Gold' instead.

Conditions: full sun, low water once established, any soil. Hardy Zone 3 to 9. Not browsed by deer.