This bugbane is native to northern Asia, from Mongolia and Eastern Russia to Japan. Its wands of densely packed, fluffy white flowers can reach 5-feet tall, making it a dramatic presence in the shade garden, particularly in late summer when not much else is in bloom there. 'White Pearl' may be slow to establish, but it's worth the wait.

There are over 35 different species of bugbane or Actaea,
spanning Europe, Asia, and North America. They're generally woodland
plants, happiest in dappled shade and cool, consistently moist soil.
Most form mounds of toothed leaves and then in mid-summer send up spikes
of tightly packed flowers, often followed by conspicuous berries. NOTE:
Berries are poisonous to people and rabbits; harmless to birds and
butterflies.