Our spring blooming season appears to be delayed in zone 4. The phenomenon of late flower blooming can often be attributed to the effects of a colder climate, which may delay the onset of spring and subsequently push back the blooming period. Certain plants require a period of cold dormancy before they can bloom; if the cold period starts later than usual due to climate change, the blooming is also delayed. Gardeners can adapt to these changes by selecting perennials that thrive in cooler temperatures and bloom later in the season, ensuring a vibrant garden throughout the year. Cheers