Hi folks

I have enjoyed buddlia for years. My yard isn't the ideal environment for them. I'm low, drain poorly, clay soil and have part sun to part shade. I have several buddlia in my yard that are not only thriving but volenteering around my property. The thing is I loose one of my faves every year or so. The ones I loose are the ones that attract hummers the best (i.e, red, pinks & purples). Faves that I lost in the past few years include verigated, tri color, honeycomb, and royal red.The whites are huge and volenteering for years.Please help me pick a specific buddlia that will be pretty hardy in my environment and do a great job of attracting hummers.

Thanks!