Buddleja (Buddlejaceae) BWJ16321

paniculata from Vietnam

A species that I thought I knew, until I stumbled across this white winter flowering species in full flower in late March. This was on my first spring expedition to northern Vietnam in 2017, growing on limestone pinnacles at 1700m, where it was plentiful. Similar in appearance to B. officinalis, but much smaller from my experience, with semi-evergreen small to medium sized ovate sharply tipped grey haired foliage, somewhat whiter below. Bearing terminal branched panicles of white yellow-eyed flowers late winter. Not tested for hardiness by us yet, hence proceed with care. Growing them in good light with plenty of shelter from hard frosts, in a soil that has good drainage while able to retain some moisture during the summer.