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InsightHorizon Digest

Why do my tomatoes have cracks

Author

John Parsons

Updated on April 22, 2026

Cracking and splitting are one of the most common problems when growing tomatoes. … Tomatoes split open when the fruit outpaces the growth of the skin — usually after a heavy rain. The bad news: split tomatoes can introduce bacteria into the fruit and cause them to rot.

How do I keep my tomatoes from splitting on the vine?

  1. Water Regularly and Deeply. Tomatoes need about an inch of water per week, so water your tomato plants every two to three days during the summer. …
  2. Mulch. …
  3. Look for Resistant Varieties. …
  4. Pick Tomatoes Early. …
  5. Provide Good Drainage.

What do cracked tomatoes mean?

Heavy rain, especially when preceded by dry weather, is the leading cause of fruit cracking and splitting in tomatoes. … Cracking and splitting occur when rapid changes in soil moisture levels cause fruits to expand quicker than the tomato skin can grow.

Is it safe to eat tomatoes with cracks?

Can You Eat Cracked Tomatoes? Concentric cracks are usually minimal and often heal themselves so, yes, you can eat this type of cracked tomato. Radial cracks are often deeper and can even split the fruit asunder. These deeper wounds open the fruit up to insect attack as well as fungus and bacterial infection.

Does cracks in tomatoes mean I am over watering?

If you take away water, the tomatoes cannot stay lush and juicy, and the skin will crack just as your skin cracks if you do not have enough moisture. And when the tomatoes receive a large amount of water quickly after this, they fill with water and the skin bursts at the cracks like an overfilled water balloon.

Why do my tomatoes split after picking?

When moisture levels change quickly, the tomatoes’ skin splits because it can’t keep up with the tomatoes’ rate of growth (source). Splitting is especially likely when tomatoes are overwatered after their soil has been left to dry out. … It may also be simply a matter of inconsistent moisture.

Should I water tomatoes every day?

Early in the growing season, watering plants daily in the morning. As temperatures increase, you might need to water tomato plants twice a day. Garden tomatoes typically require 1-2 inches of water a week. … If soil feels dry about 1 inch below the surface, it’s time to water again.

What happens if you over water tomato plants?

Too Much Water Watering your tomato plants properly is the key to tomato success. Too much water and the plants drown—too little could cause blossom end rot, when the tomatoes turn black on the bottoms. Inconsistent watering can also cause blossom end rot, split tomatoes, and stressed plants.

What do you do with cracked tomatoes?

A tomato that has split open can attract fruit flies, and develop fungus, mold, and bacteria inside. Skip the cracked tomatoes if you’re doing any tomato canning. However, cutting around the cracks of a tomato and using the good parts in salads, sandwiches, salsas and sauces is perfectly fine.

Why are my cherry tomatoes cracking?

Splitting cherry tomatoes is a common occurrence for many vegetable gardeners, and is usually due to a change in moisture levels in the soil around the tomato plant. … The inside of the tomato grows faster than the skin and the tomato cracks under pressure.

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Why do my tomatoes have rings around the top?

This type of downward crack is called a radial crack. The other crack, which is the one you have, makes circles around the top of the fruit. … Cracks are caused when the fruit internally grows more quickly than the outside. This fast internal growth spurt causes the external skin layer to split open forming a crack.

Why do my tomatoes have stretch marks?

Tomatoes crack when dry weather is followed by wet weather, causing the fruits and plants to grow vigorously. It’s almost the same as stretch marks on a human when he or she suddenly gains weight and the skin stretches beyond its usual elasticity.

Can tomato plants get too much sun?

Tomato Sunscald: Why Too Much Sun Can Be Hazardous to Your Tomatoes’ Health. Tomato sunscald is a problem caused by growing conditions – specifically intense, direct sunlight for extended periods during very hot weather. The excessive sunlight discolors patches on ripening or green tomatoes.

Do tomato plants need full sun?

“Six to eight hours of sun is all a tomato plant needs,” says tomato expert Scott Daigre. “Shade accordingly.” Tomatoes thrive in full sun.

Should I remove yellow leaves from tomato plant?

If your plants are grown with adequate space between them, light will reach the lower leaves and they don’t have to be removed. When lower leaves start getting yellow it is a sign that they are shutting down and they should be removed before they become a sugar drain on the rest of the plant.

What do tomato plants look like when they are overwatered?

ANSWER: If you’ve overwatered your tomato plants, the plants will show it with wilted leaves and stems that are discolored to yellow or brown and may even fall off. You may also see blisters or bumps on foliage and…

What do Underwatered tomatoes look like?

Underwatering: Tomato plants that are temporarily water-stressed will have wilted leaves that are still green. … For plants stressed by underwatering, usually plants will wilt at least once before leaves begin to yellow. If water remains insufficient or with repeated wilting, yellow leaves will brown and die.

Should I remove brown leaves from tomato plant?

Plants need foliage to create energy from photosynthesis, but the growth and development of foliage uses up a lot of the plant’s energy that could be used for fruit production. Removing dead, diseased, or just unnecessary leaves and stems from tomato plants increases the fruit.

Why does bottom of tomato rot?

Blossom-end rot is caused by insufficient calcium in the tissue of the tomato. Calcium is taken up into the plant through the roots, however, it settles in one part of the plant. This means that the rot can occur even when there is an ample supply of calcium in the soil, stems or leaves.

What is the best time of day to water tomato plants?

The best time to water your tomatoes is early in the morning. This will allow any moisture that makes its way to the leaves an opportunity to dry before the heat of the day, and that can help to prevent diseases and burning of the plants. You need the water you’re administering to be efficiently used.

Do tomatoes prefer morning or afternoon sun?

Afternoon sun provides the light your tomato plants need to thrive without the intensity of the noonday sun. Several hours of direct sunlight after 2 p.m., in addition to morning light, is typically desired for growing tomatoes.

Why are bottom leaves of tomato plant turning yellow?

Too much water or too little water can both cause yellow tomato leaves. Soak tomato plants thoroughly once every five to seven days, depending on weather and soil type. … Water tomato plants carefully at the base of the plant and keep the leaves as dry as possible. Watering early in the day is best.

Do tomatoes like coffee grounds?

Tomatoes like slightly acidic soil, not overly-acidic soil. Used coffee grounds have a pH of about 6.8. … Then scratch grounds into the soil surface around plants. Coffee grounds contain nitrogen, potassium, potassium, magnesium, copper, and other trace minerals.

Do tomatoes grow better in pots or in the ground?

Tomato plants perform best in soil that is loose, rich, and drains well, which means they translate easily to container gardens—especially more compact determinate tomatoes, or bush varieties. Indeterminate tomato varieties that grow larger have more extensive root systems and do better planted directly in the ground.

Can you plant two tomato plants together?

Tomatoes planted too closely together may be more likely to develop problems, such as: Disease – A lot of plant diseases flourish on moist leaves. … Tomato plants require a good amount of these resources, so if they’re planted closely together, they will compete and likely all lose.