Hairy bittercress is an annual weed that can spread quickly. It often enters landscapes as a contaminant in container plants.
April 21, 2016 – Author: Diane Brown, Michigan State University Extension
Hairy bittercress (Cardamine hirsuta) is an annual weed in the mustard family. It often makes its way into landscapes as a “gift with purchase.” A few plants or seeds of bittercress tucked into a container-grown plant are all it needs to get started. Just a plant or two can make a substantial stand of plants in a year or so.