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Home GARDEN Garden Care

Tomatoes Blooming Without Fruit? Here’s the Causes and Solution You’ve Been Missing

Lois Capone by Lois Capone
August 13, 2024
in Garden Care
Reading Time: 4 mins read

IN THIS ARTICLE:

Toggle
  • Temperature Extremes
  • Poor Pollination
  • Water Stress
  • Nutrient Imbalance
  • Pests and Diseases Troubles
  • Overcrowding

If you’ve ever nurtured your tomato plants, eagerly watching them bloom, only to be disappointed by the lack of fruit, you’re not alone.

It’s a frustrating experience as you put in the time and effort, but instead of a bountiful harvest, you’re left with empty blossoms.

But there are reasons behind this common issue, and once you understand them, you can see your tomatoes produce the fruit you’ve been waiting for.

 

Temperature Extremes

Temperature Extremes on Tomato Plant
Temperature Extremes on Tomato Plant

Tomatoes thrive in warm weather, but temperatures below 50°F can really mess with their mojo.

When it gets too chilly, tomato plants might just stop growing or even drop their flowers. And without flowers, well, no fruit for you!

On the flip side, if it gets too hot – like above 85°F – your tomatoes might start to feel the heat stress. They could drop their flowers or stop producing them altogether.

But don’t worry, if you know a cold front is coming, you can protect your plants with frost fabric or a low tunnel.

Heat-tolerant Varieties of Tomato
Heat-tolerant Varieties of Tomato

And if you’re in a super hot area, look for heat-tolerant varieties like solar fire and heatmaster that can handle the sweltering summer.

 

Poor Pollination

Tomatoes Are Pollinated by Bees
Tomatoes Are Pollinated by Bees

Tomatoes are self-pollinating but they still need a little help from the wind or buzzing bees to move the pollen around.

If you don’t have enough pollinators in your garden, or if the weather isn’t cooperating, your tomatoes might not get the pollination they need.

Electric Toothbrush Tomato Pollination
Electric Toothbrush Tomato Pollination

One trick I’ve found super helpful is using an electric toothbrush. Yep, you heard that right!

Just turn it on and gently touch it to the stem of the flower. The vibrations mimic the buzz of a bee and help shake the pollen loose..

Pollinating Tomatoes by Hand
Pollinating Tomatoes by Hand

If you’re not into using your toothbrush on your plants, you can also try gently shaking the plants or tapping the stems.

This can help move the pollen around, especially if you’re growing your tomatoes in a greenhouse or a sheltered spot where the wind doesn’t reach.

 

Water Stress

Tomato Plant with No Water
Tomato Plant with No Water

When tomatoes don’t get enough water, they can get all cranky and stressed out. The leaves start to wilt, and the plant just can’t focus on making those juicy tomatoes we all love.

Overwatering Tomato Plant
Overwatering Tomato Plant

But wait, there’s more! Overwatering is just as bad. If you drown your tomatoes, their roots can rot.

Rotten roots can’t take up the nutrients or water the plant needs, and you end up with sad, yellowing leaves and no fruit.

Watering Tomato In The Right Way
Watering Tomato In The Right Way

So, what’s the fix? Tomatoes need about an inch of water per week. You can do the good ol’ finger test to check the soil moisture.

Stick your finger about 6 inches into the soil near the plant’s base. If it comes out dry, give your plant a drink. If it’s muddy, hold off on the watering can.

 

Nutrient Imbalance

Nutrient Imbalance on Tomato Plant
Nutrient Imbalance on Tomato Plant

Too much nitrogen is also a common culprit. If your tomato plants are all leaves and no fruit, they’re probably getting too much nitrogen.

This nutrient is great for leafy growth, but too much of it can make your plants forget they’re supposed to produce tomatoes.

On the flip side, potassium helps with flower formation, while phosphorus is crucial for fruit development and ripening.

Without enough of these, your plants might produce flowers that never turn into fruit.

Using A Balanced Fertilizer
Using A Balanced Fertilizer

When you’re planting, go easy on the nitrogen. Use a balanced fertilizer that provides all the essential nutrients.

If you’ve already gone overboard with the nitrogen, you can try flushing it out with a deep watering or adding a carbon-rich mulch to help neutralize the soil.

And don’t forget to add some potassium and phosphorus when your plants start to flower.

 

Pests and Diseases Troubles

Planting Marigolds With Your Tomato Plants
Planting Marigolds With Your Tomato Plants

Tiny insects love to suck the sap out of your plants, leaving behind a sticky residue called honeydew. Not only do they weaken your plants, but they can also spread diseases.

If you spot them, try blasting them off with water or using a soapy water spray. And hey, planting some marigolds nearby can attract ladybugs.

Spider Mites on Tomato Plant
Spider Mites on Tomato Plant

Next, let’s talk about spider mites. These guys thrive in hot, dry conditions and can quickly take over your plants.

To combat them, keep your plants well-watered and mist the leaves regularly. If they still show up, cover your plants with a row cover to create a humid environment that spider mites hate.

Late Blight on Tomato Plant
Late Blight on Tomato Plant

Now, onto the diseases. Late blight is a big one. It’s a fungal disease that can cause your plants to wilt and develop dark spots.

Unfortunately, once it takes hold, it’s tough to get rid of. Your best bet is to remove and destroy infected plants to prevent it from spreading.

Tomato Blossom End Rot
Tomato Blossom End Rot

Another common issue is blossom end rot. This isn’t actually a disease but a calcium deficiency. You’ll notice dark, sunken spots on the bottom of your tomatoes.

To prevent this, make sure your plants are getting consistent water and consider adding calcium to the soil by hanging a bag of crushed eggshells in the garden.

 

Overcrowding

Overcrowding Tomato Plants
Overcrowding Tomato Plants

When you plant too many tomatoes too close together, they end up competing for sunlight, water, and nutrients, leading to poor fruit production.

When tomatoes are packed in too tightly, they don’t get enough airflow. This lack of ventilation can make them more susceptible to diseases like blight and mildew.

Plus, the leaves stay wet longer after watering or rain, which is a big no-no for healthy tomato plants.

Planting Tomato Plants with Proper Space
Planting Tomato Plants with Proper Space

I once made the rookie mistake of planting my tomatoes way too close together. To avoid overcrowding, make sure to space your tomato plants properly.

Most varieties need about 18 to 24 inches between each plant. This gives them enough room to grow and ensures they get plenty of sunlight and air.

 

Tomatoes Blooming Without Fruit: Here’s the Solution You’ve Been Missing
Tomatoes Blooming Without Fruit: Here’s the Solution You’ve Been Missing
Tags: eggshelltomato
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Lois Capone

Lois Capone

Lois Capone is a wife and mom in her 50s who enjoys sharing gardening, DIY tips, and home decor ideas. She believes that with some inspiration, anyone can create a special feel in their home and garden.

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