Can You Overwater Tomato Plants?


It is more likely to get the best result if things are done within a limit. In the same way, if tomato plants are watered in adequate amounts, they grow healthy and produce the best quality fruits too. Leaves of overwatered tomato plants look yellow in color. 

So, can you overwater a tomato plant? If the tomato plants are overwatered, the chances of root decomposition increase, and the whole plant can get affected. As a result of which, it may die. Also, the immature tomatoes are damaged, and cracks are also noticed. The overwatered tomato plants produce bad-quality fruits, tasting watery and mushy. 

It is always recommended to water tomato plants up to 5 centimeters weekly. It would help maintain the soil’s required moisture and enough to keep the plants hydrated.

It is obvious that you need to be extra cautious during the rainy season, and frequent watering should be avoided. 

What Are The Signs of Overwatering Tomato Plants?

You can notice 5 different signs in your tomato plants, if they are overwatered. 

  • Yellow leaves
  • Cracked tomatoes
  • Blossom end rot
  • Watery or mushy taste
  • Root rot

If you notice the symptoms mentioned above, you need to rectify your watering habits for tomato plants, or you will have bad-quality tomatoes. It may also lead to the death of your precious tomato plants, and all your hard work behind it may be wasted. 

Let us discuss these points one by one:

Yellow Leaves: 

overwatered tomato yellow leaves

We all know that green leaves are healthy for all types of plants and tomato plants are not an exception. So if you notice yellow leaves in your tomato plant, something is definitely wrong going on with your plant. 

Yellow leaves are seen if your plant is overwatered. In this situation, your plant won’t breathe due to a lack of oxygen and nitrogen, it starts suffocating, and roots won’t be able to deliver adequate nutrients to the plant due to excessively wet soil. 

If the soil does not have a good drainage system, the roots are soaked in the water, and decomposition begins. 

Thus, always check the soil’s moisture level before watering by dipping your finger in it. If the soil is dry up to 5 centimeters, it’s a good time to water your tomato plant; if it is still wet, you should wait to water it. 

Cracks on Tomato Fruit:

cracks on tomato
cracked tomatoes

If your tomato plant is overwatered, cracks in already-produced fruits happen due to the sudden inflow of water in tomato plants. 

When the fruit’s skin is cracked, the flesh of tomatoes expands faster than its skin. 

If the skin of green tomatoes is cracked, the chances of fruit rotting are more. Overwatering can also increase the risk of disease and pest infection. 

Blossom-End Rot: 

Blossom-end rot happens due to calcium deficiency, happens due to overwatering tomato plants, and its roots are soaked in water. 

As a result, roots become incapable of delivering nutrients to the plants, and calcium is also not reached. This issue does not resolve even after adding calcium-rich fertilizers. 

Due to calcium deficiency, the bottom part of the steam looks dark brown or black and mushy, inviting fungus and bacteria, which is enough to destroy your hard-growing tomato plants.

Watery or Mushy Taste: 

Tomatoes are well known for their tangy sweet flavor, but over-watering results in their bad taste. 

Overwatering causes the flavor of tomatoes to become watery and mushy. 

As we have already discussed, the roots are soaked in water due to overwatering and become inefficient in delivering proper nutrients to the plant. Due to improper nutrients, the tomatoes can’t generate their original taste. 

Root Rot:

tomato rot root

When roots are soaked in the water, this often causes root decomposition. It is the root that delivers nutrients and hydration to the whole plant. In such a scenario, roots cannot deliver nutrients and water to the plant, which destroys the whole plant. 

As soon as you identify root rotting, you should replant your tomato plant in well draining soil. 

So, do not water your plant too frequently; rather, manage the frequency of watering it.

How Often Should Tomato Plants Be Watered?

It is always advised to check the soil moisture level before watering the tomato plants. If the soil is dried up to 5 centimeters, it is a good time to water them. You can check soil moisture by dipping your finger inside the soil surface.

In the seedling stage, the water intake is needed a little more than the grown-up plant because the small roots cannot absorb adequate water from the soil. So they need frequent watering before they develop taproots. 

The taproots are generated after 30 days of the tomato seedlings. After this stage, you should reduce the watering frequency to once a week. The frequency of watering is also dependent on the local climate. 

Like in the rainy season, less watering is needed, whereas more frequent watering is needed in hot climates. 

How Wet Should The Soil Be For Tomato Plants?

soil moisture for tomato plant

A good drainage system of soil is much needed for tomato plants’ healthy and long life. The upper surface of the soil should be 2.5 CM to 5 CM wet. It should never be moister than this level. 

In this condition, the plant’s root properly delivers sufficient water and nutrients to the plant. 

Ensure proper water penetration for the tomato plant if grown in clayey soil; otherwise, the drainage system of the soil will be disturbed. 

  • Your tomato plants’ soil should be dampened to the perfect level – not too dry and not overly soaked.
  • When watering your plants, avoid forming puddles, as this can prevent necessary nutrients from reaching the roots.
  • Construct your custom soil blend to optimize the growth potential of your plants by mixing together compost, potting soil, and perlite.

How Do You Know If Tomatoes Are Overwatered?

How Do You Know If Tomatoes Are Overwatered

Various symptoms indicate that your tomato plants are overwatered.

  • Yellow leaves are one of the most common signs of over-watered tomato plants. This indicates that your plant lacks oxygen and nitrogen.
  • Cracks on tomatoes are also common signs of overwatered tomato plants. It leads to the rotting of tomatoes and destroys them. 
  • Root rot is the last and most dangerous sign of overwatered tomato plants. It totally destroys the plant. 
  • The bad and watery taste of tomatoes is also a sign of an overwatered plant. 
  • Watering your tomato plants is always recommended if the soil’s upper surface is dry up to 5 centimeters. 

How To Save An Overwatered Tomato Plant?

If you have already traced that your tomato plants are overwatered, you can save your plant depending on the level of damage caused. (1)

  • You should avoid frequent watering, and time should be allowed for the plant to recover itself. 
  • Only water your tomato plant if the upper surface of your soil is dried up to 2.5 to 5 CM. 
  • Ensure a good drainage system of the soil, and if planted in clay soil, you should take care of the process of water penetration.
  • Yellow leaves, if any, should be cut off, which would help the plant to overcome the stress of being overwatered.
  • You should carefully remove the plant from the soil and cut off the rotten roots. The rotten roots should look dark brown and black. Healthy roots look white in color.
  • Replant your tomato plants in fresh soil.

Summary

Always check the moisture content in the soil before watering the tomato plant. Ensure correct watering techniques; you will always be amazed to have red, fresh, juicy, and tangy tomatoes.

Frequently Asked Questions

What are the signs of over watering tomato plants?

The most common signs of overwatering tomato plants are wilting, yellowing or discolored leaves, and stunted growth.

Other symptoms may include blossom end rot, leaf curl, leaf spotting, and root rot. Wilting or drooping may be caused by either too much or too little water; however wilting due to overwatering is usually accompanied by yellowing or discolored leaves.

Can an overwatered tomato plant be saved?

Over Watered tomato plant can be saved by usng the below tips:

  1. Improve the soil drainage. Make sure that the soil you are using is well-aerated and has good drainage – use a border of coarse sand or perlite if needed.
  2. Reduce your watering frequency and only water when the soil at the top inch of soil is dry. Be sure to water deeply, but not too often. Invest in moisture meters to help you gauge when the plants need more water or less.
  3. If your tomato plant has wilted due to overwatering, you can revive it by moving it into a nice sunny spot and allowing the soil to completely dry out. You may also need to trim off all wilted leaves and stems, as they will not recover.
  4. Monitor your plants closely and use moisture meters or regular inspection of the soil to determine when it needs water and how much.

Is it better to over or under water tomatoes?

When it comes to watering tomatoes, the key is to strike a balance between over and under-watering.

Tomatoes need regular water but too much can cause root rot, while not enough water can lead to stunted growth or blossom end rot.

In general, tomatoes need 1-2 inches of water per week, either from rainfall or manual watering.

If you are manually watering your tomatoes, it’s best to water them deeply but infrequently, rather than shallow and often.

To be sure that the soil has been sufficiently moistened, check the moisture level by sticking your finger into the ground about two inches deep.

Can tomato plants recover from too much water?

Yes, you can recover tomato plants can from too much water but it is important to reduce the amount of water and make sure that the soil has drainage so that excess water can leave.

If the tomato plant is wilting due to overwatering, it can be brought back by reducing the frequency or amount of watering. Adding fresh compost or mulch around the plant can also help improve drainage and aerate the soil.

Additionally, if possible, move the tomato plants to an area with more sunlight as this will help them to quickly recover from the effects of too much water.

What does overwatered tomato plants look like?

As overwatering continues, leaves may drop and turn yellow or develop blisters. Eventually, the leaves could fall off entirely! To differentiate between an overwatered versus underwatered plant in extreme cases, inspect tomato plant roots for signs of rotting.

Should you water tomato plants in pots every day?

It is not ideal to water tomato plants in pots every day. Overwatering can cause the plant’s roots to rot and lead to disease.

Instead, check the soil moisture with a finger test or by using a soil meter tool before watering. When the surface of the soil is dry, it’s time to water your tomato plant.

Jason S

Meet Jason S., the gardening expert that everyone is talking about. With more than 20 years of experience in landscaping and horticulture, Jason is passionate about helping others create beautiful outdoor spaces. From choosing the right plants to understanding best practices for caring for them, he has the skills and knowledge to help you get the most from your garden. Follow him for advice on everything from soil preparation to proper watering techniques so you can turn your green space into a vibrant oasis!

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