These are very hot peppers, great for spice lovers -  In fact they are so hot their nickname is the gringo killer!  Beautiful yellow or red peppers with black seeds which will not cross pollinate with your other peppers because they are a different species (which means you can save the seed of your sweet peppers). They ramble up trees or fences and last for years, in warmer areas they fruit virtually all year round- they are fairly hardy and will take light frosts.  A must in the food forest or home garden.