Mustard is one of the oldest cultivated crops. Both seeds and leaves are edible. It grows well in temperate regions throughout Europe, Asia, and North America, and consequently features in the cuisines of all of these areas. The proverbially small seeds have a strong pungent flavor, and are used in many marinades and pickling recipes as well as condiments. The Spice House carries mustard in whole seed and powdered form. Regular mustard has a medium heat level, and is the most popular mustard for European and American dishes. Hot, Asian mustard complements many Indian and Asian dishes and sauces. Mild mustard is useful to add subtle flavor to dressings and dishes such as potato salad.