Tomato plants can put on quite a show. Thick stems, lush green leaves, and vigorous growth often make gardeners feel like they are headed for a bumper harvest. Then summer rolls on, and reality sets in. The plants look fantastic, but the tomato count barely reaches double digits.
That situation frustrates gardeners more than almost any other vegetable-growing problem. A tomato plant that looks sick at least offers obvious clues. A healthy-looking plant that refuses to produce fruit creates a mystery that leaves many gardeners scratching their heads.