A few more details that might be of help. I'm using Canna bio terra plus soil (lots of peat and coco) with a current stable PH of 7, amended with 10% worm humus, some dolomite, a guano rich in micro elements and phosphorous, a basic 4-5-5 blood fish and bone compound, and I also added a little potassium sulphate to give the mix a higher PK ratio to N and ensure enough sulphur. My tomatoes have absolutely loved the mix and are thriving beyond belief. The tomatoes have been in the soil for about 6 weeks, but the peppers were set out about 3 weeks ago. We had very warm weather the first week, and then unseasonably cool weather for the region, with 55 degree nights, and 70 degree days. Could the cool temps be the main culprit ?

I actually just started myself and the one jalapenos were late to take off as well. Mh hot banana peppers plant looked a little yellowish like that for a while but a little change In the food I gave it and a bit of extra water to gelp flush the new stuff into soil for it finally seemed to help and it's got some giant peppers hanging on her now for sure. The spots could just very well be there it's gotten slightly burnt from the water on the leaves magnifying the sunlight. The dark blavk ones are a little worrisome but since your post was a couple months ago hopefully that has not gotten any worse and has worked itself out.

Your weather sounds identical to ours this year,and this morning returning to a pretty chilly morning. I tried to look Lisbon up because I know there's a few. I'm in southwestern Ohio. Are you by chance in Lisbon, Ohio? I'm asking only because that would be a great help in comparison as to where other plants besides my own might be. Mine are mostly Container plants in Containers I made out of giant storage bins and chicken wire, modified for irrigation and whatnot. The past month my plants have absolutely exploded the garden plants I have also were started from seed so are just a tad behind but hsve definitely closed the gap in the last couple of weeks. I grew about 18-20 types of hot peppers this year, including habanero, jalapeno, hot banana, a ghost pepper plant, and a bunch more. Not all actually survived the initial germination in the garden which I expected, honestly. But my jalapeno, originally stunted from the store, has now been loaded down with a good 30+ jalapenos and it's still running full speed now.

I recently switched to Job's Organics Vegetable and Tomato Food, little pellet types. But still give them a very dilluted MiracleGro food or Organic Burpees that's the type you mix into water. Not so much anymore due to the nitrogen levels in Those though. This Job's stuff was like pepper steroids. And per the directions, they get a foliar spray treatment that's actually for tomatoes to fight blossom end rot. They love that and so do the tomatoes.

The tomatoes are insane this year and seriously look like some garden Cthulhu straight out of a 50s movie. I can't even keep them in the garden. If you have the ability and can find the food that I use, maybe it'll help yours like mine did. I also added a very slight amount of lime and sulfur to the soil of all of them about a month ago and well. I'm no gardener by any means. So I hope I'm not giving some advice that's gonna make your plants look like Hiroshima. But it seriously turned my one last around and the rest I think are trying to take over the world when I'm not looking. I'll have peppers all winter at this rate.

And Epsom salt!! Plain stuff with nothing else in it. Add About a tablespoon to a gallon of water every other week during a watering and occasionally side dress them with a little pincheroo. Sorry. Thats important, magnesium sulfate.