What Temp Will Tomato Plants Freeze?

Tomatoes are a staple plant in many gardens and homes, offering a variety of uses in cooking and eating. It's important to know the temperature at which tomato plants will freeze in order to properly care for them and protect them from damage.

Tomato Plant Hardiness

Tomato plants are generally quite hardy and can withstand a range of temperatures. However, like most plants, they have a point at which they will freeze and sustain damage. Generally, tomato plants can tolerate temperatures as low as 33°F for brief periods, but anything below that puts them at risk of freezing.

Protecting Tomato Plants From Freezing Temperatures

If you're growing tomatoes in a location that experiences cold temperatures or has a short growing season, it's important to take steps to protect your plants from freezing temperatures. Here are a few tips:

Cover the plants with blankets or tarps when expecting freezing temperatures

Use cloths or cardboard as additional insulation around the base of the plant

Put a layer of mulch around the plants to keep the soil warmer and prevent frost from forming

Water the plants thoroughly before a frost to help protect them

Signs of Frost Damage

If your tomato plants do freeze, it's important to know what signs to look for to assess the damage. Some signs of frost damage include:

Brown or blackened areas on leaves or stems

Leaves that are wilted or dried out

Fruit that has become soft or mushy

If you notice any of these signs, it's important to take steps to care for your plants and try to nurse them back to health. This may include pruning away damaged areas, watering the plants well, and providing additional insulation and protection from further freezing temperatures.

The Bottom Line

Knowing what temperature tomato plants will freeze is important for keeping your plants healthy and productive. If you're growing tomatoes in a colder climate or during a season where temperatures frequently drop below freezing, it's essential to take steps to protect your plants and prevent damage from occurring. By following these tips, you can ensure your tomato plants stay healthy and strong throughout their growing season.