Mustard is such an easy crop to grow. If you have ever visited the wine country in Northern California in the winter you will see wild mustard in all its glory; acre upon acre of yellow, among the dormant grapevines. Of the three types of mustard--yellow, brown and oriental--yellow is the variety that is most commonly grown. Almost the entire plant is edible, from the leaves, known as mustard greens, to the seeds, from which we get the condiment. Plan to get your seeds in the ground anytime in May and then again in early fall. It's a cool weather crop, so timing is everything when growing mustard.
Till the planting area to a depth of 3 inches, using the gardening fork. Add a 1-inch layer of well-rotted manure and mix it into the soil.
Pack the planting area with a roller packer, or lawn roller.
Plant the mustard seeds 1/4 inch into the soil and 3 inches apart. If planting more than one row of mustard seeds, allow one foot between rows.
Water the area well with the fine mist setting on your hose or sprinkler and keep the soil moist during germination.
Thin the mustard plants to 6 inches apart when they reach 2 inches in height.