How to Prune black snakeweed?
No pruning required

black snakeweed · Asarum canadense
Also known as: Canadian snakeroot; colic root; false crowfoot; ginger root; heart-leaf; pigs; snake root; southern snakeroot; southern wild ginger; Vermont snakeroot
Best grown on neutral to acidic, moist but well drained soil in partial shade
No pruning required