"There's something about this time of year—when the long, hot summer draws to a close and school and work put our days back into a normal rhythm—that I find so calming and nice," she says.

Plants use several mechanisms to adjust their temperature. Some cool off by changing the angle of their leaves relative to the sun, or using fine hairs as a kind of sunscreen. They can also ...

Each fall season when the days grow shorter and temperatures get cooler, the leaves begin to change their ... Warm, sunny days and cool — but above-freezing — nights will bring out especially ...