In many parts of the country where the the winter is cold and dreary, starting your summer flower and vegetable gardens indoors in the early spring can help give you a jump start on the growing season. Almost all seeds can be started indoors and transplanted outdoors when the weather warms up, but not all seeds need an early start. Nurseries and garden centers sell kits with individual seed-starting cells or small peat pots, but you can also make you own with some soil and an old egg carton or other container.
Read the seed packet to become familiar with the plant's growing requirements and when it should be started indoors.
Remove one seed and place it at the proper depth in the seed-starter cell. The depth should be listed on the seed packet. Keep in mind that most seeds are very small and do not need to be planted very deep. In fact, some seeds should simply be placed on top of the soil.
Cover the seed with soil. Remember to use only a small amount of soil so the seed is not too deep.
Water the seeds carefully using a mister or a spray water bottle. If you use a water stream that is too strong you could displace the seeds.
Place the seeds in a warm location that gets a good amount of light. A window that faces south is often a good choice if there is one available.
Check the seeds periodically and water them so they remain moist until they are ready to be transplanted.