The bloom could last just one to six more days Published 4 hours ago • Updated 4 hours ago The cherry blossom trees in Chicago's Jackson Park are in full bloom this spring, but the open buds won't last long. In Jackson Park's Columbia Basin cherry blossom trees will remain in full bloom for just one to six more days, according to the Chicago Park District, and could change depending on weather. Don't miss local breaking news and weather! Download our mobile app for iOS or Android — and sign up for alerts. To be considered in "full bloom," nearly all buds of the cherry blooms have opened, the Park District said in a release. The bloom is considered finished when the flower petals have fallen from the trees.