Northern strain redbud - cercis canadensis "northern strain"
Common Name: northern strain redbud, Minnesota strain, eastern redbud
Hardiness Zone: 4
Height: 25 ft
Width: 30 ft
Description: Northern strain redbud is a spectacular spring bloomer, displaying bright pink flowers along the branches from early to mid spring. Developed by the Minnesota Landscape Arboretum, the Northern strain redbud was produced by selecting seeds from the best-surviving individuals of eastern redbud throughout Minnesota's harsh winter. The result is a strain of eastern redbud that is hardy in zone 4 rather than the usual zone 5.
See eastern redbud for more information.
Schier, Mary Lahr. "Plant Profile: Redbud Tree". Minnesota State Horticultural Society. https://northerngardener.org/plant-profile-redbud-tree/. Accessed 03 May 2018.