![]() Pollen production will be reduced if the temperature is lower than 50 degrees Fahrenheit. Can Tomato Plants Survive 40 Degree Weather?Ĭredit: Tomato plants will experience stunted growth, wilted leaves, and fruit pits if they are exposed to temperatures below 40 degrees Fahrenheit. If you intend to keep your plants warm with spun-polyester row covers such as Reemay, or sheer curtains, make sure you’ve prepared enough supports to prevent the covers from sitting directly on them. If your summer plants are already in the ground, cover them with individual cardboard boxes during extremely cold nights. ventilate your greenhouse to keep pests and diseases at bay on a regular basis. Tomatoes prefer temperatures ranging from 21 to 24 degrees Celsius (70 to 75 degrees Fahrenheit), and they will not thrive at temperatures higher than 27 degrees Celsius (81 degrees Fahrenheit) or lower than 16 degrees Celsius (61 degrees Fahrenheit). It is also best to wait until the soil temperature reaches 60 degrees Fahrenheit before planting. Tomatoes should be kept at a constant temperature of 50F or higher at night to grow well. This is a great resource for gardeners who want to learn more about the best container gardening tools.ĭespite the fact that tomato plants can survive temperatures as low as 33 degrees Fahrenheit, they show signs of stress when temperatures fall below 50 degrees F. This stylish watering can makes watering your plants more precise because it is sturdy and powerful. I’ll earn a commission if you use any of these links. Here are a few gardening tools that you can use to help you get started. You can also use an old plastic bucket as long as you have enough space between the bucket and the plant. A garbage bag, like a garbage can, would be a good place to put this cover over your tomato plants. If you grow tomato plants outdoors, you can protect them with a cover. Allow the plant to thaw completely out and not touch it. Seeds will not germinate when the temperature drops below 70 F. The rate at which tomato plants recover depends on how much damage has been done and how low the temperature has been. If the temperature drops for a few hours, the tomato plant may be able to recover. It is best to grow tomatoes at temperatures ranging from 70 to 85 F. However, generally speaking, tomato plants prefer warm weather and will start to experience damage when temperatures dip below 55☏ (12.8☌).īecause tomato plants thrive on warm weather, any extended period of cold will kill them. So, if you’re wondering how cold is too cold for tomato plants, the answer is that it depends on the plant’s exposure time and temperature. The good news is that as long as the roots are still alive, the plant can regenerate new leaves and stems. However, if they are just exposed to very cold temperatures for a short period of time, they may only experience damage to their leaves. If the temperature dips below 32☏ (0☌), the plants will likely die. However, as long as the plants are still alive and have some green leaves, they will likely recover once the weather warms up again. This includes leaf discoloration, stunted growth, and flower drop. If your tomato plants are exposed to temperatures below 50☏ (10☌) for more than a few days, they may start to experience damage. So, if you’re wondering how cold is too cold for tomato plants, the answer is that it depends. However, they can tolerate short periods of cold weather much better than extreme heat. They prefer warm weather and will start to suffer when nighttime temperatures dip below 55☏ (12.8☌). When it comes to temperature, tomato plants are pretty finicky.
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