 A sea of puffy blue blossoms seems to be exploding out of the ground all around the state. It's a banner year for hydrangeas, and people are noticing. Sarah Berrios with Mahoney's in Brighton says there were two factors that caused it. We had a very mild winter, and we also had consistent rainfall last year. The particular kind of hydrangeas that you see everywhere are sensitive to what happens in the winter. These are the hydrangeas that actually will form their buds the previous year on their old growth.