Obtain seeds. Because seedless vegetables are all hybrids, you will not be able to harvest seeds from them. Contact your local nursery or favorite gardening catalog for a list of seedless vegetables.
Follow the instructions of the seed packages. All seed packages have recommendations for soil, light and the best planting dates. Thse are general rules, however, and you need to take your local growing conditions into consideration. If you're a complete novice to gardening, contact your local conservation department or extension office about growing conditions, or ask your gardening neighbors.
Watch for pests. While most seedless hybrid vegetables offer some resistance to mold, mildew and bugs, there are other predators such as birds, groundhogs and moles that you need to be on the lookout for in your garden. Eliminate any such threats.