Decide what plants you want in your garden. If this is your first garden, start with plants that are easy to grow. Use plants that do not need lots of space, such as tomatoes, carrots, radishes, lettuce, beans, bush squash, bush pumpkins, Swiss chard, potatoes, onions and peas. Examples of space-robbing plants are sweet corn, melons, vine squash and vine pumpkins.
Most vegetable plants can be planted from seed. However, some plants take longer to grow than others; you will have better success if you start them indoors ahead of time. Some plants that should be started early for later transplanting are tomatoes, peppers, cabbage, broccoli and cauliflower Harden seedlings off by gradually exposing them to increased sun and wind at least two weeks before you want to plant them outside.
Don’t plant too early. Some vegetables will tolerate a little bit of freezing; these are broccoli, cabbage, onions, peas, radishes, rutabagas and spinach. Plants that will tolerate very light frosts are beets, carrots, cauliflower, lettuce, potatoes and Swiss chard. Tender vegetables, those that will die from any frost exposure, are beans, cucumbers, melons, peppers, pumpkins, squash and tomatoes. Tender vegetables should be planted after the danger of freezing temperatures has passed. The average last frost-free date for most of North Dakota is May 25.
Follow the spacing and depth recommendations that are provided on the seed packets.
Keep the tallest vegetable plants from shading the shorter plants by planting them on the north side of your garden.