From the Christopher Phillips Rare Seed Collection R7--Release #7 on September 3, 2015. This is a version of the famous 7 Pot pepper that ripens to a dark green / mustard color hence the name. These Capsicum chinense pods have a very high heat level, although not at the range of the red and brown strains in our opinion. They have a deep earthy flavor. The pods are 2.5 - 3.0 inches in length.