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Moving invasive giant solidago

11 years ago
last modified: 11 years ago

This thing will eat the garden if I don’t take steps. I got
it at a swap, the person who brought it mislabeled it as a much smaller dwarf
variety. It wasn’t til I had it a couple of years that I saw serious, 5 ft +
height out of it. I came on here to ID it and (very) tentatively did so as, Solidago
rugosa.

It is attractive but way too big for its location. I saw
this year it is expanding its territory into neighboring daylilies. I tried
pulling out the small plants but realized they weren’t seedlings, they were
connected to the parent by underground runners. Seedlings I can handle, but
runners mean trouble to me.

I want to get this out, but what am I in for? (my feet still
hurt from digging up a standard goatsbeard 3 days ago). I could move it to a
side garden where it could invade all it liked.

Or…I could remove one small piece, plant it in the side
garden, and then Round-up the parent. Do plants with runners respond to
Round-up? If I sprayed the main clump would the runners die too? I’d have to
carefully shield the other plants.

What would you do?

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