Long Purple Cayenne Pepper Seeds. Heirloom Long Purple Cayenne Pepper plants produce an abundance of long, slender, firey hot, beautifully colored purple peppers. Just like the Red Cayenne you can use Long Purple Cayenne Pepper in chili, tacos, and salsa. Long Purple Cayenne Pepper are SHU of 30,000 to 50,000. Long Purple Cayenne Pepper plants are green with some black/purple color on the stems and leaves. Long Purple Cayenne Hot Pepper has beautiful purple blooms. 70 days until harvest. Packet contains approximately 25 seeds grown naturally with love and care. Happy Planting! We have a wide variety of Heirloom Vegetable, Herb, and Flower Seeds for sale. With all of our seeds: Your first packet ships for $2.50. All additional packets ship free. So your total shipping on a seed order is $2.50 no matter how many packets you order.