i've had four serrano failures this year. all four seeds germinated. one died of helmet head complications (lesson learned re: planting the seed deep enough for soil-seed friction). another was planted a bit too deeply and its stem never gained height; for almost two months, the true leaves are stunted and sitting atop the soil.
two others grew to four inches and then got dry-looking; even the baby leaves at the nodes dried up, and i don't think it was due to insufficient watering. was the failure due to worm castings that upped the nitrogen level beyond healthy levels? next time i try to start serranos from seed, i'll follow some sage advice: use low-nutrient potting mix; fertilizer should be used at a later stage.
in the meantime, i'm growing another serrano obtained from a large garden retailer. no shame in getting professional help.
here are three of my serrano failures. (the fourth suffered helmet head and was inadvertently decapitated during the attempted remedy; its picture will not be shown here, due to the graphic nature of the outcome.)
they're all about the same age, yet the one in the middle has lived a stunted life. the internodal distance on its stem is about. . . zero.
the flanking seedlings looked great until they didn't. now they're hunched over. the baby leaves at the nodes should be green and tender, but they're dark, small, and brittle.
i'm still going to try raising serranos from seed this year, just to prove to myself that i can. when done, i'll have plants i can give away to family and friends.