I've looked everywhere for an answer to this question and can't find one.
I have a potted Heliconia that I keep in a well sunlit spot on the patio. During the daylight hours, even on cloudy days, some of the leaves curl up from the edges to the center of the leaf then, at night, they unfurl to their normal shape. What could be the cause of this?
I was thinking it wasn't getting enough water but some of the leaves are turning a light green while others are a dark, healthy looking green.
Anyone have an idea of what could be the cause?