What causes misshapen tomatoes
Dylan Hughes
Published May 23, 2026
Tomatoes will grow deformed due to environmental factors (such as water, temperature, or sunlight), genetic factors, pests, and diseases. Deformed tomatoes may have cracks or splitting, zippering, catfacing, uneven ripening, holes, or spots. Of course, there are ways to prevent some of these problems.
How do you keep tomatoes from being deformed?
Misshapen fruit Tomato fruit will develop the best shape if the temperature is above the mid-60s. Lower temperatures cause ridged fruit (a bumpy shoulder) and catfacing (ugly bottom of fruit; see below). Planting a little later, when temperatures are higher, will avoid some of these problems.
Why are my tomatoes gnarly?
“Catfacing” is when fruits develop scarred, malformed or “gnarly” growth. Most often, it comes from too-cold temperatures when the young fruits were first developing. (Tomatoes don’t “set” fruit well at all below 55 degrees.) … Catfaced fruits can be eaten; just cut off the ugly parts.
What causes dents in tomatoes?
Poor pollination and lower temperatures cause the blooms to stick to certain developing parts of the fruit. This causes indentations and scarring on parts of the fruits, while the unaffected parts of the tomatoes continue to grow and expand. This problem is quite often caused by the pesticide 2,4-D.Why are my tomatoes shaped like pears?
Disabling one gene turns tomatoes pear-shaped, researchers have found. … Without the gene, called OVATE, the top of a fruit grows more than the bottom, giving it a long neck and a bulbous base, plant biologist Steven Tanksley and his colleagues at Cornell University, Ithaca, New York, have found1.
Can you eat tomatoes with cloudy spot?
Just beneath the skin of a cloudy spot are spongy clusters of hardened white cells. While still edible, this makes the fruit difficult to peel and impairs their eating quality.
Are deformed tomatoes safe to eat?
You end up with some amazingly odd looking fruit, but it doesn’t detract from their taste. … Too much water after a dry spell can cause the skin to split (known as cracking), also leaving you with deformed tomato fruit. Eat any split tomatoes right away so they don’t rot or get infested with insects.
What does tomato blight look like?
Early blight symptoms usually begin after the first fruits appear on tomato plants, starting with a few small, brown lesions on the bottom leaves. As the lesions grow, they take the shape of target-like rings, with dry, dead plant tissue in the center.Are wrinkled tomatoes bad?
Lean into the Wrinkles by Blistering Tomatoes Tomatoes, specifically cherry or grape varieties, can start to wrinkle and get soft when they’re on the verge on going bad. They’re perfectly edible but have lost some flavor and firmness, so they taste subpar.
Can you eat tomatoes with blossom end rot?Pick off any affected fruits because they will not recover and will only drain moisture and calcium needed by healthy fruit. It is safe to eat the undamaged parts of fruits with Blossom End Rot. Merely cut away the blackened part.
Article first time published onWhy are my tomatoes blotchy?
Blotchy ripening is a physiological disorder that causes uneven ripening of the fruit. … This disorder is with lack of potassium either in the soil or in the plant system, or because of compacted soil intensified further with irregular watering of the plant.
What causes blossom end rot tomatoes?
Blossom-end rot is caused by insufficient calcium in the tissue of the tomato. … Since calcium is only moved into the plant with an ample moisture supply, when drought occurs the fruit continues to develop but will be affected by a calcium deficiency.
What can I do with wrinkled tomatoes?
When grape or cherry tomatoes start to get wrinkled because they are becoming too mature, roast them instead of tossing them out. They are delicious in salads, on sandwiches, or as a side on their own.
When should you throw away tomatoes?
If the tomato feels slimy, it is not safe to eat and you should dispose of it. If you happen to notice that the sliced tomato has mold spots, discoloration in some areas, or if you perceive some foul odor, discard the tomato immediately.
Why are my tomatoes lumpy?
A: Lumpy, distorted, oddly shaped tomatoes are generally referred to as “catfaced.” Oddly, it has nothing to do with cats. The deformity is typically caused by temperature conditions when the bloom is being pollinated. High temperatures as well as low temperatures can cause it.
What does late blight look like on tomatoes?
In tomatoes, firm, dark brown, circular spots grow to cover large parts of fruits. Spots may become mushy as secondary bacteria invade. In high humidity, thin powdery white fungal growth appears on infected leaves, tomato fruit and stems.
What are the first signs of tomato blight?
- Initially, small dark spots form on older foliage near the ground.
- Leaf spots are round, brown and can grow up to half inch in diameter.
- Larger spots have target-like concentric rings. …
- Severely infected leaves turn brown and fall off, or dead, dried leaves may cling to the stem.
How do you treat tomato wilt?
Wilting Tomato Plants Due to Tomato Spotted Wilt Virus As with the fungi listed above, there is no treatment and the wilting tomato plants should be removed from the garden as soon as possible. And, again, you will not be able to plant tomatoes in that area for at least a year.
Can overwatering cause blossom end rot?
Blossom end rot is caused by a calcium deficiency in developing fruit. Fluctuating soil moisture due to overwatering or drought, high nitrogen fertilization, and root pruning during cultivation are conducive to blossom end rot.
Can I cut off blossom end rot?
And to answer your second question: Yes you can cut off the rot and eat what’s left of the fruit — it won’t kill you or make you sick. However, I find that the remaining fruit tends to be mealy and poor quality. If you do eat it, do so right away; do not try to can or preserve it.
What is a good source of calcium for tomato plants?
Natural sources of calcium include crushed eggshells and shell meal, the ground shells of marine animals. You can buy shell meal at nurseries or garden stores. Make homemade calcium for plants by mixing the shell meal or crushed eggshells directly into the soil about 6 or 7 inches deep before you plant your tomatoes.
Why are my tomatoes marbled?
A physiological condition in which fruit appears mottled, splotchy, or unevenly ripened, gray wall is best avoided by balanced fertilizer and an occasional pruning just above the fruit. Tomato mosaic virus. Similar symptoms to gray wall, but tomato mosaic virus also affects stems and leaves along with fruit.
Why are my tomatoes discolored?
An early symptom of blossom-end rot is a light tan patch on the blossom end of the green fruit. Over time the area turns dark brown or black and may become sunken or leathery. … Some varieties of tomato (e.g., some Roma-type tomatoes) are more prone to blossom-end rot than others.
What causes GREY wall in tomatoes?
Tomato gray wall causes Extreme heat, fluctuating temperatures, and high humidity can stress plants into responding with gray wall. Overcast skies during hot weather, fog, and excess shade can also cause blotchy ripening. Overly wet soil or compacted soil can also cause tomato graywall.
How do you get rid of blossom end rot?
- Maintain steady levels of moisture to your plants.
- Use a Balanced Fertilizer.
- Make sure your soil is warm enough, but not too hot.
- Avoid working too close to the roots of the tomato plant.
- Check your soil pH before planting.
- Add calcium to your soil.
What can I spray on tomatoes for blossom end rot?
Using Calcium Nitrate Spray for Tomatoes Calcium nitrate for tomato blossom end rot is only effective when applied to the root zone, while the plant is in its flowering stage. Calcium nitrate spray for tomatoes is applied at a rate of 1.59 kg. (3.5 lbs.) per 100 feet (30 m.)
Why do my tomatoes look wrinkled?
When a tomato’s surface becomes disfigured, lumpy, or wrinkled, it’s likely the victim of catfacing. Catfacing is caused by a drop in temperature when the tomato plant blooms or begins to set fruit. Low temperatures slow setting. Most catfaced tomatoes may look lumpy but it is still edible.
How do you revive shriveled cherry tomatoes?
Pour a good glug of olive oil over it and, if you have at your disposal, sprinkle some dried (or fresh) parsley over them as well. Bake at 200°C until they get all wrinkled and shrunken! 😉 It should be done in 20 minutes (or 30 minutes if you like a bit more charring on the tomatoes).
Why are my garden tomatoes mushy?
Tomatoes, like any plant, need water to grow, but too much water can make the tomatoes mushy, and too little water can cause the tomatoes to rot. … Water your plants in the morning and water the roots, or ground, not the plants. The tomato plant loves heat and flourishes in warm environments.
How long do tomato plants last?
ANSWER: A tomato plant will only last a year in most vegetable gardens. As soon as it gets cold and freezes, the tomato plant will die. In places where the temperature never falls below 60 degrees or when indeterminate tomatoes are grown indoors, they are short-lived perennials that will last for two years.