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Does anyone know if jerusalem artichokes can out-grow english ivy?

Posts: 66
Location: Lacey, Wa
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I've got some english ivy that keeps coming back and I keep whacking it back and ripping up what I can. I noticed that my Jerusalem artichokes rarely if ever have weeds around their bases, so I was wondering if they might be alleopathic, or perhaps just vigorous enough to out compete english ivy.

Does anybody know?
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To kill English ivy in my garden, the grounds people used two sprayings of roundup, it started coming back with in weeks.

When I expanded the garden without permission I dumped a foot of grass clips and wood chips over the ivy, it started coming back at the same rate as the roundup plot. But grew mostly around the edges where the mulch is thinner. Then I over planted with nasturtiums.

In a third plot I asked the grounds people to weed whip the ivy and then I dumped another foot of just grass clippings and planted naturisms. The ivy is poking through at the edges.

In a final plot I got a pick and sholve and dug out the ivy. It’s a lot of work and the ivy will still come back.

With the mulched areas, I pull the little ivy leaf starts and throw them in the path way as a chop and drop.
Nasturtiums and pumpkin type squash will outgrow ivy and can be treated as a food crop, a cover crop or a flower display. They both will grow well in green mulch.

My experience with Jerusalem artichokes is like sunflowers. If you give either of them room and light to sprout, they will grow. But once they grow above ivy they should be fine, until the ivy starts growing up the stalks, then good luck to them.
Jerusalem artichokes don’t grow in green mulch; I’ve found the tubers rots along with the grass clippings.
Posts: 4437
Location: North Central Michigan
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Early On Jerusalem ARtichokes will not be weed free, but if left in place for a period of 2 years or more they should pretty much outcompete anything that would try to take over them, but that doesn't mean the ivy won't still be able to grow there as they have different root types and sun needs..the ivy prefers shade and shallow soil and will climb, the arti's like sun and deeper soil and don't mind vines climbing up them..so they might just like each other..worth a try.
I knew that guy would be trouble! Thanks tiny ad!
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