Cayenne Purple Pepper

Start seeds indoors 6 to 8 weeks before your last spring frost. Soak seeds for 24 hours to improve germination rates. Sow seeds 1/4 inch deep in warm, moist seed-starting mix. Maintain soil temperature between 70 and 85 degrees Fahrenheit using a heat mat if necessary. Seedlings typically emerge in 7 to 14 days and need bright light immediately to prevent legginess.

Transplant outdoors after all danger of frost has passed and soil has warmed to at least 60 degrees Fahrenheit. Harden off seedlings over 7 to 10 days by gradually exposing them to outdoor conditions. Space plants 12 inches apart in rows spaced 36 inches apart. Plant at the same depth they were growing in containers, and water thoroughly after transplanting.

Peppers can be harvested at the purple stage for ornamental appeal and milder heat, or allowed to ripen further for deeper flavor and maximum pungency. Mature peppers feel firm and the skin develops a glossy sheen. Use a clean knife or pruners to cut peppers from the plant rather than pulling, which can damage branches. Harvest regularly throughout the season to encourage continuous flowering and fruit production. Days to harvest of 75 to 85 days refers to time from transplant to first mature fruit.

As an upright annual with a naturally compact growth habit reaching 18 to 24 inches, Cayenne Purple rarely requires formal pruning. Pinching the growing tip when seedlings are 6 inches tall encourages bushier growth and more flower production. Remove the first flowers if plants are slow to establish, redirecting energy into a stronger root system before heavy fruiting begins.