Here are the last two pepper grow updates for the past month. The plants are a little set back from early-season issues, but I think they are doing well now.
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ALL of the pepper plants you show that have wrinkled leaves, have completely run out of calcium, and the wrinkling is caused by the plants not able to build new cell walls. Add some “Hi-yield” brand bone meal that you can order on-line or from your local Ace hardware, about 1/2 cup per plant and mix it with about 1/2 cup of potting soil, and water the fertilizer-potting soil into the soil. Do that every 10 days, until the leaves flatten out again. Leaves should be as flat as if you ironed them, a critical mistake when growing the Chinense group of Super-hots.