How Cold Before You Cover Tomato Plants

Tomatoes are a sensitive crop and can be damaged by colder temperatures. If you live in an area with changing weather patterns, you may wonder how cold it needs to be before you cover your tomato plants to protect them. Not all growers have the same opinion on this matter, but there are some general guidelines to follow.

When to Cover

Many tomato growers choose to cover their plants when the temperature drops below 32 degrees Fahrenheit. This is because frost can seriously damage the plants, and any fruit on them. If you live in a colder climate, you may want to cover your plants earlier in the season. For example, some growers choose to cover their plants when temperatures drop below 40 degrees Fahrenheit.

How to Cover

There are several ways to cover tomato plants to protect them from the colder temperature. One is to use a row cover fabric that provides insulation while allowing light and air through. Another option is to use blankets or sheets to cover the plants, but be sure to remove them during the day to allow the plants to get enough sunlight. Whatever option you choose, make sure that the cover is anchored securely to prevent it from blowing away in the wind.

When to Remove Cover

Once you have covered your tomato plants, you may be wondering when to remove the cover. If temperatures have warmed up during the day, it is best to remove the cover to allow the tomato plants to get enough sunlight. Additionally, make sure to remove the cover when the temperature rises above 45 degrees Fahrenheit to prevent overheating the plants. If you're unsure when to remove the cover, it may be helpful to use a thermometer to monitor temperatures inside and outside the cover.

Other Tips

Covering tomato plants can help protect them from the cold, but it is important to remember that it is not a guaranteed solution. Other factors, such as wind and humidity, can affect the temperature within the cover. Additionally, make sure to water your tomato plants regularly, but don't over-water them, as this can also damage the plants. If you are concerned about the temperature dropping suddenly, you may want to consider using a heat source, such as a space heater, to keep your tomato plants warm.

Conclusion

In conclusion, the answer to how cold it needs to be before you cover your tomato plants differs for each grower. The general guideline is to cover the plants when temperatures drop below 32 degrees Fahrenheit, but some growers prefer to use a higher threshold. Whatever option you choose, make sure to monitor the temperature inside and outside the cover and remove it when necessary to prevent overheating the plants. With proper care, you can protect your tomato plants from the cold and enjoy a bountiful harvest.