At dusk, some plants begin to rearrange themselves. A prayer plant lifts its patterned leaves until they stand like hands held together. Purple oxalis folds its triangular leaflets into little tents. Clover pulls its leaflets close, and some flowers that looked cheerful at lunchtime quietly close the shop. It is tempting to call this sleep, and gardeners have been doing…
Read more about The sleepy garden: why plants fold their leaves at night

