(Image from: https://hudsonvalleyseed.com/products/king-of-the-north-pepper?_pos=1&_psq=king%20of%20the&_ss=e&_v=1.0&variant=31280963190829)
Growing Instructions for King of the North Pepper:
Start indoors 6-10 weeks before last frost in very warm spot (80 degrees is ideal). Keep seedlings in a well-ventilated area at 70+ degrees and do not over water. Transplant outdoors after threat of frost has passed. Plants grow to 24" high; stake plants to keep fruit off the ground. Harvest young for green bells or allow the fruits to fully ripen to their large, sweet, and juicy red form.
(from Hudson Valley Seed Company website)