This video describes how to have a raised garden bed. You can use your raised garden bed for most all vegetables. They are using this one for winter vegetables and early spring ones. A good hint was to line 3 seeds up end to end and that is the depth you need to plant them. Lettuce was the vegetable that was shown. Thinning out the bed is very important as not to crowd the plants. A point made was that you can eat the ones that you thin out or use them in a compost pile. Keeping the seedlings moist was very important. It helps the germination process.