The Curse of the Plume Poppy
About 3 years ago my husband (the landscaper no less) planted a plume poppy in our garden after seeing them in many of his customer's gardens. He does not do the weeding or maintaining of these gardens...just some design, construction and planting...so he was horrified to see that that one plume poppy became about 30 by the end of the season. We are STILL fighting that thing, which is a shame because it is a beautiful plant but frighteningly invasive!
Any thoughts on organic ways to exterminate it once and for all?