Vegetable Plants Temperature Tolerance
Vegetable plants can tolerate a wide range of temperatures depending on the specific vegetable and climate conditions, but there are certain limits. Many vegetables are considered cool-season crops, meaning they grow best and thrive in temperatures between 45 and 75°F (7.2-23.9°C). To get the most out of your vegetable plants and ensure they yield a fruitful harvest, here are a few temperatures to consider:
Optimal Growing Temperature
- Tomatoes: 65-85°F (18.3-29.4°C).
- Carrots: 55-75°F (12.8-23.9°C).
- Cucumbers: 65-85°F (18.3-29.4°C).
- Beans: 65-90°F (18.3-32.2°C).
- Peas: 68-86°F (20-30°C).
Vegetable crops can become greatly stressed under temperatures that are too low. If the temperature in your area drops to 32°F (0°C) or lower, the plants can suffer damage and will likely not thrive. If temperatures are likely to drop below this level, it’s important to ensure your vegetable plants are well-protected with protective coverings or are moved inside.
Extreme High Temperature
When temperatures become too high, the vegetable plants can be damaged and, in extreme cases, even die. Very high temperatures, especially combined with low humidity and high winds, can be particularly dangerous for the plants. Most vegetable plants can survive in temperatures up to 90°F (32.2°C), but when temperatures reach this level, be sure to provide extra water and shade as needed.
Vegetable plants can survive and even thrive in temperatures from 45-90°F (7.2-32.2°C). Keep in mind that some vegetables have specific temperature requirements and that temperatures below 32°F (0°C) or above 90°F (32.2°C) can be damaging to the plants. To ensure your vegetable plants grow and produce the best results, be sure to monitor the temperature throughout the growing season.