The mustards are several plant species in the genera Brassica and Sinapis whose proverbially tiny mustard seeds are used as a spice and, by grinding and mixing them with water, vinegar or other liquids, are turned into a condiment also known as mustard. The seeds are also pressed to make mustard oil, and the edible leaves can be eaten as mustard greens. Mustard seeds generally take 4-10 days to germinate if placed under the proper conditions, which include a cold atmosphere and relatively moist soil. Mustard greens (also known as green mustard cabbage), the leaves of the Indian mustard plant (Brassica juncea), are one of the greens considered to be an essential element in soul food. They are more pungent than the closely-related Brassica oleracea greens (kale, cabbage, collard greens, et cetera) and are very frequently mixed with these milder greens in a dish of "mixed greens", which can also often include wild greens such as dandelion. As with other greens in soul food cooking, they are generally flavored by being cooked for a long period with ham hocks or other smoked pork products. Mustard greens are also extremely high in Vitamin A and Vitamin K. Varieties we carry are Florida Broadleaf and Southern Curly Mustard.