I have three pepper plants, two scorpion opera (Trinidad and moruga) and one ghost pepper plant. One of the scorpions and the ghost pepper seem to be turning yellow and are dropping their blooms. My other scorpion is doing fantastic. They all get watered the same, get about 12 hours of sunlight, and are seeing temperatures from 55 F to 90 F, depending on the day or night (I live in central Texas). Any idea what’s going on? I can’t decide if it’s a nutrient deficiency or nitrate toxicity, or maybe it’s something else entirely. This pepper plant is the one doing good. This one is the other scorpion, which has some obvious yellowing. This is my ghost pepper, which seems to be doing better than the other scorpion, but still doesn’t seem to be doing as well as the scorpion in the first picture. Here’s a picture of all three of them, with the ”healthiest“ one farthest on the right, with significantly greener leaves. On a side note, does anyone know why the leaves are somewhat bumpy and crinkled on all of them?

Yes and no. First the excess nitrogen needs to be removed and this may sound strange to you but you should feed the microbes sawdust, ground up twigs or cardboard. Feeding the microbes a diet low in nitrogen and high in carbon will force the microbes to consume excess nitrogen in the soil to live. The microbes main diet is carbon and nitrogen at a ratio of 24 parts carbon to 1 part nitrogen and the items I mentioned have a ratio of 378 parts carbon to 1 part nitrogen for cardboard and up to 500 to 1 for twigs and sawdust. They eat the carbon and turn to the excess nitrogen in the soil to eat, problem fixed. So get about a 1/2 cup of ground up cardboard, twigs or sawdust and mix into the soil. (you figure out how to grind them up) After a couple of weeks it's time to start feeding the plants again but only with the fish stuff DON'T use the Trifecta! It was a one time application only. Fish emulsion has a 5-1-1 nutrient ratio and right now your plant needs MORE potassium than nitrogen the fish stuff doesn't have, so 1/2 of a dried banana peel will do every two weeks. Fish emulsion has 3 to 5 parts carbon to 1 part nitrogen so when consumed by the microbes they leave a lot of nitrogen for the plant to use. Adding any other source of nitrogen will be too much. But if you really want to make the plant healthy and happy get some alfalfa meal, it's rich in everything a tomato plants needs that the fish stuff doesn't. Cut the fish stuff in half and cut the alfalfa meal recommendations in half and you will never have a nutrient problem suffered by many who use pots to grow in. The plant that has already grown will never produce a flower or tomato and flowers will only appear on new growth so don't worry, and cutting off the bottom leaves didn't hurt it a bit. To be honest I never read your original post so I didn't know you mentioned no flowers, All I looked at was the picture.

If somebody can tell me what I’m doing wrong that would be great. One of my cayenne pepper plants, pepper ends, are shriveling. The other plants are fine and are not doing this. The entire plant looks healthy, the leaves are perfect the stocks look good, there are no signs of wilting or discoloring. I am a beginning gardener. SOS

Appears to be a classic case of overwatering. Or at least, not providing adequate drainage. The pot is still sitting in its foil wrapping. This should be removed as soon as the plant is brought home, as it will collect and retain water and impede good drainage. There may also be an issue with the soil media being overly moisture retentive - most prebagged mixes are. Remove any dead or dying leaves, as they are not helping anything. I'd also unpot and examine the roots for rot or mushiness and then repot with a high quality, textural and fast draining potting soil.