Southeastern Pennsylvania: (cultivated) April, May
New Hampshire: April, May, June
Prague, Czech Republic: (cultivated) April, May
Moravia-Silesia, Czech Republic: (cultivated) April, May
Aurora, Colorado area: May
This page is a profile for the plant species Syringa vulgaris, 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.