Can Tomato Plants Survive a Freeze?

Tomato plants are sensitive to cold weather, and a freeze can be detrimental to their health. However, under certain conditions, tomato plants can survive a freeze.

Preparation

Preparation is key when it comes to protecting tomato plants from a freeze. One way to protect them is to cover them with sheets or blankets. This will help retain heat and prevent the plants from freezing. Another method is to mulch around the plants to insulate the soil and retain warmth.

Effects of Freeze

When tomato plants are exposed to freezing temperatures, their cells can be damaged or destroyed. This can result in various symptoms, such as leaf discoloration, wilting, and even death. If the freeze is mild, the plants may recover, but if the temperature drops below 28°F for an extended period, the plants are unlikely to survive.

Variety

Some tomato varieties are more tolerant of cold weather than others. For example, determinate varieties tend to mature earlier and may have a better chance of surviving a freeze. Additionally, certain heirloom varieties are known for their cold tolerance, such as 'Siberian' and 'Black Krim.'

Harvesting

If a freeze is imminent, it may be better to harvest the tomatoes rather than trying to protect the plants. Mature green tomatoes can be picked and allowed to ripen indoors. Alternatively, the whole plant can be uprooted, and the tomatoes can be hung upside down to ripen.

Conclusion

While tomato plants are not typically known for their cold tolerance, with proper preparation and care, they can survive a freeze. It is important to cover the plants, insulate the soil, and choose varieties that are more tolerant of cold weather. If a hard freeze is forecast, it may be better to harvest the tomatoes before the plants are damaged.