Jupiter Pepper

Start seeds indoors 6 to 8 weeks before your last spring frost date. Use seed-starting mix kept consistently moist at 70 to 85°F; germination typically takes 7 to 14 days. Keep seedlings under bright light once they emerge, and maintain warm conditions throughout the growing period indoors.

Harden off seedlings by gradually exposing them to outdoor conditions over 7 to 10 days before planting. Transplant outdoors once soil temperature reaches at least 60°F and nighttime temperatures stay above 50°F, typically 1 to 2 weeks after your last frost date. Space plants 18 inches apart in rows 36 inches apart.

Jupiter peppers are ready to harvest 60 to 69 days after transplanting outdoors. Pick them at any stage of ripeness; they can be harvested green for a slightly more herbaceous flavor, or left on the plant to fully color for maximum sweetness. Peppers are mature when they reach about 4.5 inches across and feel firm to light pressure. Cut peppers from the plant using a sharp knife or pruners rather than pulling, which can damage branches.

Jupiter's upright, stocky growth habit requires minimal pruning. Remove any lower leaves once plants are established to improve air circulation and reduce disease pressure, but otherwise allow the dense canopy to develop naturally. This foliage serves the important function of shading the fruits from sunburn, so avoid over-pruning.