Are you still waiting for the green foliage to change to its seasonal fall colors? The main factor that triggers the color change is the increasing length of the night, which causes chlorophyll production in the leaf to stop. We found some brilliant fall color in Grand Teton National Park in late September.
I was curious about what types of trees turn yellow and what types turn red, so I turned to the Forest Service of the USDA for some answers.
–Oaks: red, brown, or russet
– Hickories: golden bronze
– Aspen and yellow-poplar: golden yellow
– Dogwood: purplish red
– Beech: light tan
– Sourwood and black tupelo: crimson
The color of maples leaves differ species by species:
– Red maple: brilliant scarlet
– Sugar maple: orange-red
– Black maple: glowing yellow