Does ragweed grow back after cutting?
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We get a lot of ragweed
invading our perimeter.
It's a good thing neither of
us is allergic, but it doesn't take long before it grows high enough
to shade parts of the garden.
Wikipedia recommends pulling
up ragweed in the late spring when the roots are not as strong,
something we might try next year. Mowing is not good enough because if
just a half inch sticks out above the ground it will grow back even
stronger within 2 weeks of non freezing conditions.