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Ideas for invasive root barrier
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Posted by kate6 z7 bhm (My Page) on Wed, Apr 9, 08 at 13:39
| I'm reworking my garden beds, and also expanding them. I have a large amount of "invasive" rhizome plants that I want to keep, but also keep confined to specific areas. These include maximillian sunflowers (perennials), various brewing hops, etc.
We cut and old metal 55 gallon drum (was free) into 3 sections for the hops (we have 3 varieties), but I'd like an idea for the sunflowers. If you are unfamiliar with them, they spread QUICKLY, and have overrun my daylillies in one season.
I was thinking of using cardboard/ thick newspapers inside of large garbage bags that I can bury vertically to make and underground root stopper. Any thoughts? Ideas? I am thinking as free as possible... Also, have a smalish yard, so there's only so far I can plant away from the veggies.... |
Follow-Up Postings:
RE: Ideas for invasive root barrier
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| I was reading that two layers of weed barrier in the bottom of a can/pot will keep mints from overrunning things. I would not suggest paper bags/newspaper/cardboard because I use livestock feed bags to line the bottom of my new raised beds to kill of the grass undermeath, but in a year or two they are decomposed. FYI feed bags are about 4-5 layers thick, so left whole that is 8-10 layers of thick paper. Good luck
Bilie |
RE: Ideas for invasive root barrier
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| I have the same problem. I don't know if this will work for the sunflowers, but I kept a lovely but manic iris in check by digging a trench around it (5 in deep) about 5 years ago. Now when it tries to grow across the trench which doesn't happen very often, I can see it in mid air and pull off the offending appendage. A bonus is that one of my little kitty cats likes to lie in the trench. Good luck, let us know if you find a way. |
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