9 Reasons Your Tomato Plant isn’t Flowering (and How to Fix It)


One common problem that gardeners may face is their tomato plants are not flowering. We know that tomato plants are a popular choice for home gardeners because they taste great, can be used in many different ways, and aren’t too hard to take care of.

In this article, I’ll look at 9 possible reasons why your tomatoes are not flowering and give you ways to get it to flower and start making fruit again.

Here are the 9 reasons and their best-possible solutions, according to our experts:

9 reasons why tomato plant isn't flowering

1. Not enough sunlight

Lack of sunlight is one of the most common reasons why tomato plants don’t flower. To grow well, tomato plants need at least 6 hours of direct sunlight every day. If they don’t get enough light, they might not make flowers.


  • Move your tomato plants to the spot in your garden that gets the most sun. If you don’t have a sunny spot, try growing your plants in containers that can be moved to follow the sun.
  • Cut back any trees or plants nearby that might be blocking the sun from your tomato plants.

2. Excess Nitrogen

As we know, tomato plants need the right balance of nutrients to make flowers and fruit. Too much nitrogen can stop them from flowering. Nitrogen is an important nutrient for plant growth, but too much of it can make the plant grow lots of leaves rather than flowers and fruit.


  • Use a fertiliser with less nitrogen or one that is made especially for plants that are about to flower.
  • Don’t use fertilisers that are high in nitrogen, especially after your plants have started to grow.
  • Think about using organic fertilisers like compost or bone meal, which are low in nitrogen and slowly release nutrients.

3. Watering incorrectly

To make flowers and fruit, tomato plants need a steady supply of water. If the soil is too dry or too wet, the plant may not make any flowers. Inconsistent watering can also make the plant stressed, which can stop it from flowering.


  • Water your tomato plants often and deeply, making sure the soil is damp but not wet.
  • Don’t let the soil get too dry, but also don’t water it too much, which can cause root rot and other problems like not flower on tomato plants.
  • Think about using a soaker hose or drip irrigation to get water to the roots directly.

4. Temperature Extremes

Temperature changes, both hot and cold, can damage tomato plants. When it’s too hot, flowers can drop off, and when it’s too cold, flowers can’t grow. Temperature extremes can also make the plant uncomfortable, preventing it from flowering.


  • Plant your tomatoes at the right time for your area, and make sure they have shadows when it’s hot to keep them from becoming too hot.
  • When it’s cold, put frost blankets over your plants or bring them inside if you can.
  • If you want to protect your plants from extreme temperatures, think about using row covers.

5. Pollinators are not there

If you don’t have enough pollinators in your garden, your tomato plants might not make any flowers. For tomato plants to produce fruit, they need to be pollinated. Bees, butterflies, and hummingbirds are all examples of common pollinators.


  • Plant flowers that pollinators like, like bee balm, lavender, and marigolds, to attract them to your garden.
  • Give pollinators a place to get water, like a bird bath or a superficial dish of water.
  • Think about adding a beehive or bee hotel to your garden.

6. Overcrowding

Tomato plants require a significant amount of space in order to grow and develop. If there aren’t enough of them, they won’t be able to produce flowers because of the competition. It is possible for tomato plants to stop flowering if they are grown in a space that is too crowded since they will begin to compete with one another for water and nutrients.


  • Give each of your tomato plants at least two feet of space between them, and make sure there is something they can hold to in order to keep them upright.
  • If your plants are already too close to one other, you should either remove the plants that are in the worse condition or move some of them to a new site.
  • Consider using tomato cages or stakes to provide support for your plants and prevent them from taking up an excessive amount of space in your garden.

7. Insects and or disease

Tomato plants can become ill or be attacked by insects, both of which will prevent the plants from producing flowers. There are many diseases that can affect tomato plants, such as bacterial canker, fusarium wilt, and verticillium wilt, which can all stop the plants from blooming.


  • Do an inspection of your tomato plants to look for signs of disease or insect infestation, such as spots or fading leaves.
  • Remove immediately from the plant any leaves or fruit that appear to be damaged or diseased.
  • You might want to consider adopting natural methods to get rid of the pests, such as neem oil or insecticidal soap, so that you don’t endanger the beneficial insects.

8. Improper Pruning

Pruning helps tomato plants focus their energy on making fruit, but if you don’t do it right, you can also stop them from flowering. If you prune too much or at the wrong time, you may cut off the flower buds along with the new growth.


  • Learn how to prune your tomato plants the right way and don’t prune them too much.
  • Don’t prune your tomato plants until they have several flower clusters, and don’t prune them when they are stressed.
  • Prune the plant carefully to get rid of extra growth and help air flow around it.

9. Plant Stress

Tomato plants might not make flowers if they are stressed out by things like too much fertiliser, shock from being moved, or damage to the roots. When plants are under stress, they may put their energy into survival rather than making more plants, which can stop them from flowering.


  • Keep your tomato plants as stress-free as possible by giving them good care, such as regular watering, balanced fertilising, and protection from extreme weather.
  • Don’t move your tomato plants when it’s warm out, and be graceful with their roots.
  • Think about using a plant growth regulator to reduce stress on plants and get them to flower.
Read more: 9 Reasons Your Tomato Plant isn’t Flowering (and How to Fix It)


There are many reasons why tomato plants might not be flowering, like not gaining sufiicent sunlight, not getting enough water, having pests or diseases, or not being pruned right.

Gardeners can help their tomato plants grow healthy flowers and fruits by figuring out what’s wrong and doing what needs to be done to fix it. With the right care and attention, a healthy tomato plant can yield a lot of fresh, tasty tomatoes.

Leave a Reply

Your email address will not be published. Required fields are marked *

You May Also Like