How To Stop Your Tomatoes From Splitting (6 Tips)

As a tomato gardener, you are probably familiar with the frustrations of eagerly anticipating the perfectly ripe tomato, only to find it split open like a melon. A common problem can leave even the most experienced gardeners scratching their heads.

Fear not, because I’m here to give you the inside scoop on preventing those pesky splits. 

As the saying goes, ‘prevention is the best medicine,’ and that couldn’t be more accurate when it comes to tomato splitting. Not only is it disappointing to lose a good crop, but it can also attract unwanted pests and diseases to your garden. 

So let’s dive a little deeper and take a look at how to stop your tomatoes from splitting. 

1. Consistent Watering

Picture this: you’re trying to diet but can’t resist that slice of cake, so you try to make up for it by eating only celery for the next two days.

Sounds familiar? Well, your tomatoes feel the same way when it comes to watering.

If you forget to water them for a few days, they’ll soak up any water they can get their roots on, causing them to expand rapidly and ultimately split open. 

On the other hand, if you water them too much, they’ll become bloated and crack open like a water balloon.

It’s all about consistency, my friend. You want to make sure your tomatoes get enough water on a regular basis, so they can grow steadily and stay healthy. 

Personally, I’ve found that setting up a drip irrigation system or using a watering can with a gentle sprinkle attachment works wonders for keeping my tomatoes happy and hydrated.

Just remember, like with most things in life, balance is critical.


2. Mulching

A little mulch goes a long way when it comes to preventing tomatoes from splitting. Mulch acts as a protective barrier between the soil and the sun, helping to regulate soil moisture and temperature.

Keeping the soil consistently moist and cool makes your tomatoes less likely to experience rapid growth and splitting. Plus, mulch can also help suppress weeds and prevent soil erosion.

Here are a few good practices to bear in mind when it comes to mulching. 

First, use organic material such as straw grass clippings or shredded leaves rather than synthetic mulches like plastic. Organic materials help to break down over time and contribute to soil health, while plastic mulches can actually trap heat and damage roots. 

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Second, make sure you apply a layer of mulch that is 2-3 inches thick and spread it evenly around the base of the tomato plants. Be careful not to pile it up against the stems; this can cause them to rot. 

Finally, be sure to replenish your mulch throughout the growing season as needed. With these tips in mind, your tomatoes will have the best mulch-advised summer yet. 


3. Choosing The Right Tomato Varieties

Whether you’re a tomato connoisseur or you are growing for the first time, you will probably have an idea that not all tomatoes are created equal.

Just like how some people are more prone to sunburns, some tomato varieties are more prone to splitting than others. It’s all about finding the perfect balance in your garden. 

You want to look for varieties with thicker skins that are less likely to crack under pressure. 

In my experience, heirloom tomatoes can be a bit finicky when it comes to splitting.

Don’t get me wrong, I love them for their unique flavors and colors, but they require a bit more TLC than other varieties. On the other hand, cherry tomatoes are low maintenance and tend to have thicker skins making them less prone to splitting. 

When choosing tomato varieties, it’s also important to consider your climate and growing conditions. If you live in a hot and humid area, you might want to opt for a more heat-tolerant variety.

If you’re short on space, look for determinate varieties with a more compact growth habit. 

There are such wide varieties out there, and I’m sure you will find the perfect match for your garden and taste buds.


4. Pruning

Believe it or not, excess foliage can be the cause of your tomatoes splitting. When your tomato plants have too many leaves and stems, it can create a dense canopy that blocks airflow and traps moisture leading to increased humidity around the fruit.

This humidity can cause the fruit to swell or burst, resulting in those dreaded splits. Don’t panic, though, because you can save the day with a bit of pruning!

Pruning tomato plants involves selectively removing some of the foliage and stems to allow for better airflow and light penetration. This helps to reduce humidity levels and create a healthier growing environment for your tomatoes.

When it comes to pruning, there are a few things to keep in mind.

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To begin with, prune your tomato plants when they are young so they can focus their energy on producing fruit instead of excess foliage. 

Next, use a clean and sharp pair of pruning shears to make clean cuts, and be careful not to damage the stems or leaves that you want to keep. 

Lastly, try to remove no more than one-third of the plant’s foliage at one time to avoid shocking the plant. With these tips, your tomato plants will be happy, healthy, and split-free. 


5. Harvesting At The Right Time

One of the main culprits of tomato splitting is harvesting too late.

When a tomato is left on the vine for too long, it becomes overripe and soft, and the pressure inside the fruit can cause it to burst. It’s like trying to squeeze into your favorite pair of jeans after a Thanksgiving dinner- ıts just not going to happen!

To avoid this unfortunate situation, paying attention to your tomatoes and picking them at the perfect time is essential.

As mentioned earlier, you want to wait until they’re fully colored and firm to the touch but not too hard or too soft. If you’re unsure, err on the side of caution and pick them up a little earlier rather than later. 

When it’s time to harvest, handling your tomatoes carefully is essential. Use a pair of clean and sharp scissors or pruning shears to avoid damaging the stem or fruit. You don’t want to give your tomatoes a lousy haircut, after all!

And if you’re like me and tend to get a little carried away with picking, remember only to harvest what you’ll need and leave the rest on the vine to ripen.


6. Avoiding Extreme Temperatures

Generally speaking, tomatoes may love the warmth, but they’re not big fans of extreme temperatures.

High temperatures, especially in combination with dry conditions, can cause tomatoes to split open like a pinata. This is because the intense heat causes the fruit to expand so quickly, putting pressure on the skin and causing it to crack.

To avoid this, it’s essential to take steps to protect your tomato plants from extreme heat. One way to do this is by giving them a little shade during the hottest part of the day.

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You can use a shade cloth or even an old bed sheet to create a makeshift plant shelter. Think of it as a tomato umbrella, giving them a little relief from the scorching sun. 

Another way to avoid extreme temperatures is to ensure your plants are well-watered. Tomato plants need more water than usual during hot and dry weather to stay hydrated and healthy. 

Finally, it’s essential to stay vigilant and watch your plants during extreme weather conditions. Check them regularly for signs of stress or damage and take action immediately if necessary.

With a bit of extra love, your tomatoes will be able to weather any storm (or heatwave) that comes their way. 


Say Goodbye To Split Tomatoes!

As you know, harvesting a batch of plump juicy tomatoes can be so satisfying, but it can also be annoying when those beautiful red fruits start splitting open. Luckily, there are a few tricks you can use to prevent tomatoes from splitting and ensure a successful harvest. 

Most importantly, I would be mindful of consistent watering. Keep your tomatoes happy and hydrated, and avoid long, dry spells. Use mulch to protect and regulate the soil’s temperature and retain moisture. Choose a tomato variety with harder skin, harvest at the right time, and prune back any excessive foliage to create good air circulation. Always protect your tomato plants from extreme temperatures, too.  

By following these tips and taking good care of your tomato plants, you can avoid the disappointment of split tomatoes and enjoy a bountiful harvest. Take good care of your tomato plants, and they will take good care of you! Happy gardening! 

Lucy Young

Meet Lucy, a seasoned gardener with a green thumb and a wealth of experience cultivated over 10 years in her own backyard oasis. Now, she channels her passion into writing, sharing invaluable gardening knowledge on her website. From nurturing plants to expert pruning techniques, Lucy's articles are a treasure trove for both seasoned enthusiasts and budding gardeners. Join her on this leafy journey as she sprinkles insights, tips, and tricks to help you create your own flourishing paradise. Get ready to dig into her gardening wisdom and unlock the secrets of a thriving garden!

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