Growing is shade along Stevens creek. Blooming now. Thanks tp
this is the blue mist flower, which looks a lot like our cultivated ageratum, but is not the same thing. It has been called Eupatorium coelestinum, and now more commonly is called Conioclinium coelestinum. It is a widespread and attractive species, but I usually don’t see it in large colonies.
Steve Hill, Ph.D. SCNPS