Ive searched and havent seen pics of leaves this dark. These are a couple chiltepin plants from Chileplants.com. One is the mcmahons bird and the other is Pima bajo. They werent dark when I got them. Soil is cheap miracle grow potting soil. Havent fed them anything. Thinking about putting them in FFOF that I have for my other plants. Anyone have some clue as to why they are doing this? I thought maybe sunburn so I kind of stuck them in between my other ones so they have alittle shade but it hasnt changed as far as I can tell.