This year I decided to try growing multiple varieties of hot peppers including bhut jolokia (ghost pepper), trinidad scorpion, devil's tongue, cayenne, banana, and pequin. All of them do look slightly different however the super-hot peppers that are rated among the hottest in the world tend to have very large leaves, and take a longer time to flower. I did start the seeds in the beginning of April so that should be still more than enough time to get a good harvest since they can keep growing until some time in October. I'll start from the beginning.
April 2, here are some of the seeds germinating after a week or so.
April 15, They are filling out their seed racks at this point.
May 24, I finally moved the 6 largest of each species into pots to monitor their progress.
Here's a view of all of them. They are grown in 5 gallon pots which will hopefully be big enough for me to get a good harvest off each of these plants.
June 12: Here's a view of all of them after about 3 weeks. The growth is pretty noticeable.
June 19: After another week they are even bigger. I add soil every couple weeks as these guys get larger. They are also becoming less prone to getting eaten by bugs or getting diseases since they are pretty developed at this point.
July 9: After 3 more weeks they are now either making peppers or flowering for all the species. After another month, there should be good sized peppers on all of them, and I expect them to double in height by then too. I have also been super-cropping some of the stems to hopefully make them hotter, and have a better flavor. One of the things I noticed is that the hotter varieties tend to take longer to grow, and have fewer leaves, but they have much bigger leaves.
Cayenne: This one is maturing way ahead of the rest of the species as the peppers should start turning red soon while the rest are only flowering.