How Does Cold Weather Affect Tomato Plants?
The tomato is a sun-loving warm-weather plant that requires a long growing season. Tomatoes are sensitive to frost and sudden chills and should not be planted until the threat of cold weather has passed. The effect of cold weather on tomatoes can cause a variety of problems. Does this Spark an idea?
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Blossom Drop
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Sudden periods of cold weather will cause the flower blossoms to drop off the tomato plant. This condition, called blossom drop, prevents the tomato from forming.
Catface
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Catface is characterized by a somewhat flat, brown, malformed bottom and deep cavities in the skin of the tomato. Catface is caused by cold temperatures and hormone-type herbicide sprays.
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Frost
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Cold weather and frost cause the water in plant cells of the tomato to freeze, which damages the cell walls. This results in stunted growth, translucent leaves and deformed tomatoes.
Lack of Moisture
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When the ground becomes frozen, the roots of the tomato plant are unable to get the necessary water and nutrients from the soil, causing the tomato plant to die.
Phosphorus Deficiency
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Leaves of the tomato plant may turn purple and have purple veins. This is caused by a phosphorus deficiency in the soil caused by cool weather in the early part of the growing season.
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