Voting Booth: Which of these causes leaves to turn purple or red? , 1 by melody

melody wrote:
This is an interesting tangent we've gone on...the article is really landscaping around fall color and a bit of the science behind it, but I can see where there's a whole different aspect to why plants change color.

The cactus was at a Garden Watchdog vendor's nursery that I visited...there were some splendid examples of drought tolerant plants there...and given the southern California drought, they were surprisingly gorgeous. This agave was the size of the car we were driving.