flowering quince and/or butterfly bush hardiness
Anybody have any success with Chaenomeles or Buddleia in zone 4? If so, which species/cultivars have worked for you? I'm usually willing to try to stretch zone ratings of perennials I really want to have, but shrubs are a bit more of an investment. If it is only going to be a waste of time, effort, and money, I'll plant something else!