Easy to grow and prolific, tomatoes are a home-garden favorite. A huge number of varieties is available, varying from tiny cherry types to 2-pound giants; fruit colors include red, yellow, orange, and even pink. Start seeds in flats indoors 6 weeks before planting time; or buy transplants. Set out in the garden in spring, spacing plants 2 to 4 feet apart in rows 3 to 4 feet apart. Bury as much as half to three-quarters of the stem of each plant; roots will form along the buried part and strengthen the plant. Stake plants or place wire cylinders around them for support.