Oenothera speciosa: resilient ground cover?
I have a planting strip to cover, about 2 or 3 feet wide, in front of a wall, full sun, medium soil (drainage should be ok, probably concrete left overs from the construction work). Rough setting, next to a road.
I thought I would use virginia creeper (Parthenocissus quinquefolia or P. tricuspidata) to cover the wall.
And some resilient ground cover plant in front of it.
I read up on O. speciosa, a garden thug, as far as I could gather.
Funnily enough, in some online-nursery-catalogues it is recommended to be used only in small clumps of 3 to 5 plants.
Is it useful as ground cover for lager areas?
I though it sounded great, the spreading and heavy reseeding (in that way covering damaged/bald patches in the planting), frost hardiness should be ok
other candidates on my short list where Geranium macrrhorizum or Ceratostigma plumbaginoides.
Any thoughts? Thanks a lot, bye, Lin