Why does your tomato plant have flowers but no tomatoes?

- Temperature: Optimal temperature range for tomato growth is between 60-75°F (15-24°C). Extreme temperatures, especially above 90°F (32°C) or below 55°F (13°C), can disrupt the pollination and fruit-setting process.

- Humidity: Low humidity can cause flowers to drop. Aim for a humidity level between 50-60%.

- Light: Tomato plants need at least 6-8 hours of direct sunlight per day to produce flowers and fruits.

- Watering: Inconsistent or improper watering can lead to flower drop. Avoid over or under-watering.

2. Nutrient Deficiency

- Nitrogen: Nitrogen deficiency can lead to excessive vegetative growth at the expense of flower and fruit production.

- Phosphorus: Deficiency can hinder root development and affect flower and fruit set.

- Potassium: Potassium plays a crucial role in fruit development and overall plant health. Deficiency can lead to weak plants and poor fruit production.

- Calcium: Essential for cell division and development. Calcium deficiency can cause blossom-end rot, a condition where the bottom end of the tomato turns black.

- Magnesium: Involved in photosynthesis and chlorophyll production. Deficiency can lead to yellowing of leaves and reduced fruit production.

3. Pollination Issues

- Lack of Pollinators: Tomatoes require pollination to produce fruits. If there are no bees or other pollinators in the area, manual pollination may be necessary using a small paintbrush or by gently shaking the flowers.

- Self-Incompatible Varieties: Some tomato varieties may require cross-pollination with a different variety to produce fruits.

4. Disease or Pest Problems

- Blossom-end Rot: Caused by calcium deficiency, high temperatures, or fluctuating soil moisture. Affects the developing fruit, causing a black, leathery rot.

- Pests: Pests such as aphids, whiteflies, thrips, or mites can damage flowers, leading to poor fruit set.

If you address the above factors, your tomato plant should start producing tomatoes. Regular monitoring, proper care, and early intervention are key to successful tomato cultivation.