Southeastern Pennsylvania: (invasive or naturalized) April, May, June
New Hampshire: May
Central Pennsylvania: April, May
This page is a profile for the plant species Alliaria petiolata, used to collect records of where and when this plant was observed blooming, and for providing identification information for use in dichotomous keys. If you would like to help collect data for this or other plants, see Bloom clock project/How to Contribute for orientation.