Is 35 Degrees Too Cold for Tomato Plants?

Tomatoes are a popular crop among gardeners, but they require specific growing conditions to thrive. One important factor is temperature. Tomatoes prefer warm temperatures, but is 35 degrees too cold for them?

Effects of Cold Temperatures on Tomato Plants

When temperatures drop below 50 degrees Fahrenheit, tomato growth slows down. At 35 degrees, tomatoes may stop growing altogether. In addition, cold temperatures can cause frost damage, which can kill tomato plants.

According to the Old Farmer's Almanac, tomato plants can tolerate temperatures as low as 45 degrees Fahrenheit. However, they will not thrive in these conditions. Ideally, tomato plants should be grown in temperatures ranging from 65-85 degrees Fahrenheit.

Protecting Tomato Plants from Cold Temperatures

If you are expecting cold temperatures, there are several ways to protect your tomato plants:

Cover plants with blankets or tarps to retain heat.

Water plants before freezing temperatures occur. Wet soil retains heat better than dry soil.

Move potted plants indoors or to a sheltered area.

If possible, create a greenhouse or cold frame to protect plants from cold temperatures.

When to Plant Tomato Seeds

It's important to start tomato seeds at the right time for your area to ensure optimal growing conditions. Tomato seeds should be started indoors 6-8 weeks before the last expected frost date. Once seedlings emerge, they should be kept at a temperature of 60-70 degrees Fahrenheit until it’s time to transplant them outdoors.

Transplanting tomato seedlings should be done once the soil temperature reaches about 60 degrees Fahrenheit. This can vary depending on your location, so it’s important to keep an eye on the weather and soil temperature.

In Conclusion

While tomato plants can tolerate temperatures as low as 45 degrees Fahrenheit, they prefer warmer temperatures for optimal growth. Cold temperatures can slow down or stop tomato growth, and cause frost damage. To protect your tomato plants, cover them with blankets or tarps, water them before freezing temperatures occur, move potted plants indoors, and consider creating a greenhouse or cold frame. When planting tomato seeds, start indoors 6-8 weeks before the last expected frost date, and transplant once the soil temperature reaches about 60 degrees Fahrenheit.