my greenhouse daytime temps are hitting 45C/113F. but drop back down to 1C by morning. yes, i have to open the doors to regulate heat. sitting at 29C now with tomatoes & 1 tray of peppers. i sprayed the floor and it is like a sauna - plants look happy.
i am thinking of putting plants in the greenhouse today. this morning was 1C but afternoon hit 45C. last year at this time i felt like gretzky slipping and sliding along the 15' walk to the g/h doors.
and it could just be end of life for the little guy. i just tossed a yellow 7 pod yesterday, started out looking like yours but as the weeks progressed more and more leaves would either drop or dry up. i have about 5 more that look the same, i keep hoping they will make to at least june so they...
trade winds fruit claims to have them as does local harvest. refining fire chiles lists them but notes an out of stock. local harvest states they source them from refining fire.
if all else fails and you don't mind a canadian company halifaxseed.ca lists them on their site.
good luck.
could it be your seedlings were not getting enough phosphorous? i use 10-52-10 fertilizer, bottom feeding. then watch for white fuzzy roots to protrude from the bottom of the container before i pot up. my containers also sit on a slotted surface to allow airflow under the container.