Full sun vs full sun
The one on the left receives direct sun from about 12 PM to sundown. The one on the right gets full sun from around 7 AM till the sun vanishes from the horizon. As far as insolation is concerned, both plants benefit from direct sunlight, and yet the results are vastly different. Because as you can see, not all "full sun" are equal. A week ago, I saw a post on Facebook about an Echeveria 'Black Prince' that appears etiolating, with conspicuously brightish green leaf bases. According to the owner, her plant receives "full sun", but having seen hundreds, if not thousands, of succulents, I know what "full sun" does to plants. And her plants certainly do not fall into the category. When I inquired about the length of time, she said it's 8 hours. My plants (when pertinent, because this logically excludes the ones that prefer more shade) receive roughly 11 hours of full sun every day. It would have been more if not for the mountain range th...