Thai Scorpion Pepper

Start seeds indoors 6 to 8 weeks before your last spring frost. Pepper seeds germinate best at soil temperatures between 70°F and 85°F. Sow seeds 1/4 inch deep in seed-starting mix and keep consistently warm and moist under grow lights or in a warm windowsill. Germination typically occurs within 10 to 14 days under ideal conditions.

Harden off seedlings gradually over 7 to 10 days by exposing them to increasing amounts of outdoor light and air movement. Transplant outdoors only after all danger of frost has passed and soil temperatures have reached at least 60°F, ideally closer to 70°F. Space transplants 18 inches apart in rows 36 inches apart.

Thai Scorpion Peppers reach full maturity at 90 to 99 days from transplant. Harvest peppers when they have reached full size and color, mature pods will feel firm and have a glossy appearance. You can pick peppers at any stage from green to fully ripe red, depending on when you want maximum heat versus optimal flavor development. Use sharp pruners or scissors to cut peppers cleanly from the plant rather than pulling, which can damage branches. The plant will continue producing through the growing season if you harvest regularly.

Remove the first flower buds that appear to encourage stronger branching and a bushier plant structure, especially on younger seedlings. Once plants are established and flowering freely around 90 days, minimal pruning is needed beyond removing any dead or diseased growth. The upright growth habit naturally produces a compact, self-supporting shape, though removing lower leaves after flowering begins can improve air circulation.