Answer: You are right, it seems nearly impossible to eradicate this plant (aegopodium). Persistence is the answer. You might try using an herbicide containing glyphosate according to the label instructions. Be very careful to apply it when the plant is in active growth as directed and wait the full time before removing the top growth. This is to ensure that the chemical translocates fully to the roots. Even so, it may take repeated applications to do it in. In the meantime, make sure the plant does not go to seed as it spreads this way in addition to the underground runners.
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