Why a Healthy Tomato Plant Flowers but Sets No Fruit

The Scenario

A 7-foot-tall, vigorous tomato plant (possibly a “Big Boy” from saved seed) produces abundant flowers but zero fruit—blossoms drop off. Nearby tomatoes and bees are thriving.

Likely Cause: Sterile Hybrid Seed

Seeds saved from hybrid tomatoes (like Burpee’s Better Boy, Big Boy, etc.) often produce plants that are genetically unstable or sterile. They may grow lush foliage but fail to set viable pollen or develop fruit, even with perfect pollination conditions.

What to Do

• Accept that this plant won’t produce; remove it to free space and resources.
• For future seasons, start with fresh hybrid seeds or nursery transplants—saved hybrid seed is unreliable.
• If you want to save seed, choose open-pollinated/heirloom varieties.

Other Blossom-Drop Factors (Ruled Out Here)

Extreme heat (>90°F), cold nights (<55°F), irregular watering, or excessive nitrogen can also cause blossom drop, but the sterile-seed explanation fits the “one odd plant among many healthy ones” pattern.