(Courtesy of The Nature Conservancy in Ohio)
As the calendar turns from September to October, the days grow shorter, the air turns crisp, Ohioans are eagerly awaiting the vibrant display of fall foliage that transforms the landscape into a tapestry of reds, oranges and yellows.
This year, peak fall color is expected to occur around mid-October in northern regions of the state with southern areas following toward the end of the month.
Several factors influence the timing and intensity of fall colors. One of the primary factors is fading daylight. As nights grow longer, trees begin to prepare for winter by slowing down their photosynthesis process. This reduction in chlorophyll production allows other pigments in the leaves, such as carotenoids and anthocyanins, to become more visible, creating fall’s brilliant hues.
Of course, temperature and rainfall are also important. Cool, frost-free nights and sunny days are ideal for vibrant fall colors as these conditions help preserve sugars in the leaves, enhancing red and purple pigments. Early frosts, however, can damage leaves and dull the colors.
This year’s severe drought may also impact fall foliage, resulting in less vibrant colors. For drought intolerant species, we could even see early leaf drop. Thankfully, this week’s rain may get us back on track for a good show.
As you plan your autumn adventures in Ohio, keep an eye on local foliage reports and maps to catch the peak colors.
