Can narcissi cross breed?
I moved into a place a few years ago that has a well established bank of beautiful dwarf and, so I am told, wild narcissi. They are small and quite delightful. We work hard to keep it clear of brambles and bracken and each year they are spreading. There are a few clumps of bigger, cultivated narcissi growing amongst them and I am concerned they might cross breed so that eventually the wild narcissi will no longer be 'true'. Does anyone know if this can happen and should I dig up the non wild varieties growing nearby to stop this from happening?