Many colour descriptors come into play for the foliage of this ‘chocolate’ plant – bronze, green, black, purple, brown, burgundy – and depending on the season, and the slant of the light, they are all correct! Chocolate boneset is known for its indulgent foliage - the spring foliage has the richest colour that fades to a more simple green moving into bloom season (photos below are September colour). I also like the burgundy stems that provide even more interest. It is a great backdrop for other plants through the spring and summer, and then launches its own display of elegant white lacy blooms in late summer through the fall.
Technical stuff: Eupatorium rugosum ‘chocolate’, is actually related to common Joe Pye Weed, hardy perennial, 3’-4’ tall, full sun to full shade, happy in any soil conditions once established, white blooms late summer through the fall, drought tolerant, easy care.