Glossary
A dark amber, strongly flavored honey produced by bees foraging on Japanese knotweed (Fallopia japonica) blossoms in late summer and early fall. Despite the plant's status as an aggressive invasive species, Japanese knotweed is an excellent nectar producer that provides valuable late-season forage for bees.
Japanese knotweed is one of the world's most aggressive invasive plant species, capable of growing through concrete and displacing native vegetation. However, for beekeepers in the northeastern United States where it grows abundantly, it provides a critical late-season nectar source during September and October when few other plants are blooming.
The honey it produces is surprisingly good: dark amber with a butterscotch or caramel-like flavor and moderate sweetness. Beekeepers in areas with large knotweed populations can sometimes harvest a separate knotweed crop in early October, providing one last harvest before winter.
Japanese knotweed honey has a warming, molasses-like sweetness with notes of butterscotch and mild tannins. It is darker and bolder than most tree-blossom honeys but not as intense as buckwheat. The flavor lends itself well to baking, where it adds depth and color to cookies, quick breads, and marinades.
Like autumn olive honey, knotweed honey represents beekeepers making the best of an ecological problem. The bees will forage on the flowers regardless, and harvesting the resulting honey creates a silver lining from an otherwise entirely negative invasive species.
No. Bee foraging does not meaningfully contribute to knotweed reproduction or spread. The plant primarily reproduces through underground rhizome fragmentation, not seed production. Harvesting the honey creates value from an existing problem without worsening it.
It has a dark, warming flavor often compared to butterscotch or dark caramel with mild tannin notes. It is bolder than clover or wildflower honey but mellower than buckwheat. Many honey enthusiasts consider it an underrated varietal.
Japanese knotweed blooms in September and October in the northeastern United States. The honey harvest, when it occurs, typically happens in late October. It is not widely available as a labeled monofloral variety.
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