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I planted Oenothera along my garden path last summer. Please tell me if this plant is usually invasive; it was supposed to be 6-8 inches high but has spread (from seed droppings?) and would appear to be coming up for 1-3 feet around the base of the plant.
Submitted by BHGPhotoContest

Oenothera spp. is a true garden thug and can spread even under drought conditions and in poor soil. It propagates by stollens and runners underground. It's fairly easy to pull out but you may have to use glyphosate (the active ingredient in Round-Up) to kill it off in areas where it is unwanted.

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