Grow Heirloom Peppers - Plant Chile de Arbol Pepper Seeds - 15,000-30,000 Scovilles A small and potent Mexican chile pepper that is also known as "Rat's Tail Chile Pepper" or "Bird's Beak Chile Pepper". Maturing from green to bright red, Chile de Arbol peppers can be used fresh, cooked, or powdered. Most often seen in wreaths or hanging swags as Chile de Arbol peppers retain their beautifully festive color even when dried.