Yea, and when pigs fly the price of bacon wll rise!! Sorry, but really, if only it were that easy. It is possible that some plants will over run it and reduce its strength, though I've never in all the years come across one. Many people are absolutely plagued with ground elder and the only way to get rid of it is to dig, dig, dig and then dig again, removing each tiny bit of root because each broken bit will yield a new plant. You can weaken it with constant mowing or choppige, glyphosphate will reduce it, keeping it in the dark (under carpet or black plastic) just slows it for a while - really hard graft is all that does it. Having said all that, I have it, and quite honestly it is a weed I'd rather have than some, say mares tail, docks and so on. It can be cut down, if you never let it flower it slows the spread. It disappears in winter and quite honestly, with other plants growing through it, it rally is not that offensive IMHO.