As I was walking down this path with snow and ice crunching underfoot I remembered how my garden in Northern Wisconsin had two springs. The first spring came to the front of the house which was bathed in sunlight. The back of the house, colder and north facing was always a few weeks behind, especially around the garage where snow from the roof was dumped- extending winter's hold on that little garden even longer.
It is not really a bad thing, to have micro-climates in your yard or a park. If we are lucky, for a few weeks we get to walk in a winter garden and an early spring garden on the same day.
Here, in the shady, cooler area of the grounds the early spring flowers were a bit slow to open. However, the Winter Aconite was making a good show of it and entertaining guests; bees! Next to seeing Witch Hazel in bloom, seeing bees skipping from flower to flower is a real treat after a long winter.