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Tall Goldenrod

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description Tall Goldenrod Overview

Tall goldenrod, Solidago altissima, is a perennial member of the aster family native across much of North America. It forms upright stems topped by branching clusters of numerous small yellow flower heads, providing late-season nectar and pollen for many insects. Goldenrods are often blamed for hay fever, but their relatively heavy pollen is carried mainly by insects, while wind-pollinated ragweeds are a more common source of seasonal allergies.

help Tall Goldenrod FAQ

Does tall goldenrod cause hay fever allergies in late summer?

No, this is a common misconception because it blooms at the same time as ragweed. Tall goldenrod (Solidago altissima) pollen is heavy and sticky, relying on insects rather than wind for pollination, whereas ragweed produces the wind-borne pollen that actually causes allergic reactions.

What insects are attracted to Solidago altissima?

It provides crucial late-season nectar for a wide variety of insects, including migrating Monarch butterflies and numerous native bee species. The small yellow flower heads are a vital food source before winter sets in across its native North America.

How tall does tall goldenrod actually grow?

True to its name, Solidago altissima typically features upright stems that reach between 3 to 6 feet tall. It forms branching clusters of numerous small yellow flower heads at the top of these stalks during the late summer and fall.

Is tall goldenrod considered an invasive weed?

While native to much of North America, Solidago altissima is a member of the aster family and can spread aggressively in gardens through underground rhizomes. In parts of Europe and Asia, it is actually classified as an invasive species because it outcompetes local flora.

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