Organic Horticulture in the Mid-Atlantic/Wild Onions

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The weedy species of wild onions in the Mid-Atlantic are generally one of two species: the invasive Allium arvense or the native Allium canadensis. For horticultural purposes, they are both treated in the same way as weeds, though A. arvense tends to form larger clumps and is more likely to become a weed of lawns.

Both plants need to be grubbed using a weeding tool that can get the roots out, since the roots tend to be deep and the stems easily break away allowing the plant to regrow. Both species will grow back from either the main bulb or the bulblets, so the area should be inspected for weed regrowth a week or two after the initial grubbing.