Korean Hyssop - Knowledgebase Question

Acton, CA
Question by gaspar1
April 24, 1998
Is the Korean Hyssop, Agastache rugosa, invasive? What are the plant's requirements?


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Answer from NGA
April 24, 1998

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Agastache rugosa is a robust plant, but not one that's considered especially invasive. Plant in full sun to partial shade and water regularly. If you keep the spent flowers cut off, it won't spread by seeds, and you'll encourage additional stem and flower growth. Use it in perennial beds and borders for a bold, decorative specimen.

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