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Common Goldenrod

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description Common Goldenrod Overview

Common goldenrod, Solidago canadensis, is a perennial flowering plant in the aster family, native to much of North America and introduced elsewhere. It produces branching clusters of small yellow flower heads in late summer and autumn, providing nectar and pollen for many insects. Its conspicuous bloom is often blamed for seasonal allergies, although wind-pollinated ragweed is a more important source of airborne allergenic pollen. Goldenrod is the state flower of Nebraska and Kentucky.

help Common Goldenrod FAQ

Is common goldenrod responsible for seasonal hay fever?

Solidago canadensis is mainly insect-pollinated, and its pollen is comparatively heavy. Wind-pollinated ragweed blooms at a similar time and is a much more frequent cause of late-summer hay fever.

Why is Canada goldenrod invasive outside North America?

It spreads through both seeds and underground rhizomes, allowing it to form dense colonies. In parts of Europe and Asia, those colonies can displace native grassland plants.

How can I tell common goldenrod from other goldenrods?

Common or Canada goldenrod typically has tall leafy stems and broad, arching clusters of many small yellow flower heads. Fine hairs on the upper stem help distinguish it from some similar Solidago species.

Should common goldenrod be planted for pollinators?

Within its native North American range, it supplies late-season nectar and pollen to bees, flies, beetles, and butterflies. Gardeners should allow room for its rhizomes or use barriers because the plant can spread well beyond its original clump.

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