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How To Get Thick Stems On Tomato Plants?

If you are a gardener, then you might love tomatoes as a crop for their easy maintenance and care. But the most common issue you may have faced is that when the tomato plant grows and bears fruit, the entire plant bends due to the excess weight of the fruit.

This is due to the thin stems, and there are a variety of causes for this problem. Most of them are caused by not getting enough sunlight, water, nitrogen, or aeration.

The most excellent technique to produce thick stems on tomato plants is to feed them all the nutrients they require. But it’s essential to understand how much they require to get thick. This article will provide you with some unique knowledge that will assist you in thickening your tomato stems, so stay with us.


What considerations should be made before planting tomato plants?

To begin with, employing tomato plant support will assist in avoiding disease, deterring pests, keeping fruit clean, and limiting competition between plants, so don’t overlook it.

The importance of light for a tomato plant is that tomato plants turn sunshine into energy. So they can produce more fruit if they have more incredible energy.

Keep in mind that many tomato plants grow to be 2-3 feet wide, so make sure your planting ground is rich in organic matter.

You might know that raising the temperature effectively raises the maximum tomato growth rate. That is why tomatoes grow best in warm soil and should be planted in the spring.

Procedures to follow To Thick Stems On Tomato Plants

Your primary focus should be to monitor your tomato plant; it receives adequate sunlight and water. Also, make sure your tomato plants are appropriately spaced to allow for growth, ensuring excellent aeration and feeding them enough nitrogen-based fertiliser. 

The following ways are maintaining your tomato plant to get enough nutrients and energy to get thick and harvest a good amount of fruit. You must follow all methods, all processes, and our instructions.

1. Ensure Sufficient Sunlight

With only 4 hours of sunlight, some tomato plants will not be able to yield much fruit. If your plants do not get enough sunshine, you may notice that they grow tall to strive for more light but never develop any fruit and, as is typical, get thinner.

As a result, adequate sunshine is required for the healthy development of tomato stems. However, knowing how much need is vital because too much direct sunshine can harm your crop.

Tomato plants require at least 8 hours of direct sunlight per day for good growth. They can survive in both the morning and afternoon; all you have to do is make sure your tomato plant gets 8 hours of sunlight every 24 hours.

Excessive sunlight discolours spots on ripening or green tomatoes, and supplying direct sunshine assures that tomatoes grow tall and thin. 

Also, make sure to choose a location that will receive enough sunshine daily. However, if the area is overgrown with other large plants, cut those plants so that sunshine can reach your tomato plants.

2. Tomato Plant Spacing 

Plant spacing minimises the danger of disease in two ways: contagion and a more robust immune system. The disease spreads quickly from one plant to another when they grow on top of another. Thus plants that grow too close together are not as healthy as those with enough distance.

This gap may appear dramatic at first, but as the plant grows larger and broader, you will recognise the value of spacing. Allowing enough space for the roots also guarantees that every tomato plant obtains the appropriate nutrients from the soil.

Unless all plants are planted together, healthy competition will occur, resulting in thinner and unhealthy plants. Plants that are appropriately spaced, on the other hand, allow air to circulate easily between the plants, stems, and foliage, which dries out the leaves and avoids fungal diseases. As a result, leave 1 to 3 feet between plants.

3. Ensure Maximum Provision of Nitrogen

To thrive, tomatoes require nitrogen in the soil. Nitrogen is utilised to create chlorophyll, a critical component in photosynthesis, often known as energy production. Tomato plants will begin to turn yellow if there is insufficient nitrogen, beginning with the bottom leaves. Not only that, but a lack of energy will result in a thinner and less healthy plant at the end of the month.

So there is no doubt that nitrogen is the ingredient that will provide the best growth for the foliage of your tomato plant. If you want thicker tomato plant stems, ensure they get enough nitrogen. The best approach is to fertilise the tomato plants with a nitrogen-rich fertiliser.

NPK is an abbreviation for the Nitrogen, Phosphorus, and Potassium ratio. Tomatoes typically require 1/2 pound of fertiliser every 50 square feet of garden space. A fertiliser with a 6-24-24 or 8-32-16 ratio is recommended for practically all tomatoes.

You can use a slow-release fertiliser, which is usually applied on top of the soil. Still, you can also add liquid fertiliser to the soil with a spray.

4. Ensure Proper aeration

Plant germination requires oxygen. The soil must be adequately aerated before planting the seeds. A sufficient supply of oxygen to the roots will help encourage stem thickening.

Soil aeration provides subsurface air supply by transferring O2 and CO2 between earth pores and the atmosphere. It aids in the prevention of crop oxygen deficiency. It reduces dangerous carbon dioxide levels in the subsurface air if they get too high.

It improves lawns and gardens by loosening dense soil and increasing plant accessibility to critical elements such as oxygen, water, and organic materials. Aeration of the soil can encourage root growth and boost the photosynthetic rate and chlorophyll concentration.

A sand and clay mixture can be an ideal alternative to promote aeration. The clay soil will retain water and moisture, while the sandy soil will give aeration. On the other hand, if you like to grow tomatoes in containers, invest in high-quality potting soil to ensure proper aeration.

5. Ensure Adequate water

Water tomato plants in the garden and containers regularly during the growing season. Inadequate watering can limit yield or cause problems such as blossom end rot. Too much water can damage the roots and cause ripening fruits to fracture or split.

Garden tomatoes require 1-2 inches of water per week on average—water plants every day every morning early in the growing season. As the weather warms, you may need to water tomato plants twice a day.


However, there is some uncertainty about determining when watering is required. On a hot summer afternoon, regular tomato plant leaves look wilted, but if your plants are wilted in the morning, that’s a clue you need to water.

But there is another way to find out. First, insert your finger into the dirt at 1 to 2 inches. If the finger sticks readily and without effort, no watering is required. However, if it becomes difficult to stick, it is necessary to water your plants.

However, like with overwatering, if your tomato plant is underwatered, the leaves will wilt and turn yellow when the plant requires water.

6. Do Crop Rotation

To minimise monoculture planting concerns, it is critical to cultivating various crops. Diverse plants have different nutritional requirements and are vulnerable to various germs and pests. If a farmer grows the same crops year after year, he will take the same nutrients from the soil.

So, if you grew tomatoes in the same spot year after year, the nutrients the tomatoes require to develop well would quickly be depleted, and you’d end up with thinner, less nutritious plants. The best way is to plant legumes in the soil that you utilised last year, as these plants deliver nitrogen to the soil.

7. Fertilizing Tomatoes

Tomato plants are heavy soil consumers. And, regrettably, they can swiftly deplete the nutrients in your soil, no matter how rich and nutritious it is. As a result, fertilisation is critical to a tomato plant’s general health and vitality.

You can use compost made expressly for producing tomatoes, which have all of the nutrients the plants require. You could also use an organic or chemical fertiliser twice a month. This will also aid in establishing a robust root system in young plants.


However, too much fertiliser can cause poor fruit output, so knowing how frequently to fertilise your plants is crucial. You can also keep things simple by using a fertiliser specifically designed for tomatoes, typically with a ratio of 3-4-6 or 4-7-10. Most importantly, avoid over-fertilization, and it is usually preferable to use too little fertiliser rather than too much.


Which fertiliser is best for tomatoes?

If your soil is well-balanced or high in nitrogen, use a slightly lower fertiliser and higher in phosphorus, such as a 5-10-5 or 5-10-10 mixed fertiliser.

How do I make my tomato plants less leggy?

Good soil will help your tomato plants develop and prevent them from growing leggy. You might use a soil mixture that includes manure and mulch as the top layer. Mulch will help keep moisture in the soil for a more extended amount of time.

How do I get more yield on my tomato plants?

Set up supports, especially at the same time as transplanting your seedlings, is a simple approach to boosting tomato yield.

Does pruning tomato plants increase yield?

Pruning or carefully reducing some tomato plant growth can increase harvestable yields and extend the harvest season. Furthermore, keeping tomato plants off the ground minimises the spread of common fungal diseases such as early blight.

How long does it take for tomatoes to develop from seedling to mature?

Tomatoes take around six to eight weeks to grow from seed to transplant. When seeds are started inside too early, they develop thin, overgrown seedlings. 

Final Words

Tomato plants may thicken up in various ways, as detailed here. Now is the time to apply all maintenance instructions, suggestions, and, most importantly, guidance. After that, feel free to submit a question in the comments area if you have any. We’ll get back to you as soon as we can.