Why aren't cucumber ovaries growing in the greenhouse?

The first thing you need to do is understand what the cause is. You also need to find out, Why do cucumber embryos turn yellow in a greenhouse?.

• Female flowers may appear late for various reasons. Firstly, fruiting status is directly dependent on seed quality. After all, barren flowers can form due to using fresh seeds when sowing. The situation is different if you used seeds from the previous year. With such sowing, female flowers appear even earlier than male ones.
• The plant may also fail to bear fruit due to excessive amounts of nitrogen fertilizer in the soil. This only causes excessive leaf growth. In this situation, it is necessary to immediately fertilize the cucumber bushes with phosphorus fertilizers.
• The bush may not bear fruit due to improper watering. Do not water the plant with cold water.
• Excessive soil moisture may be the reason why cucumbers don't bear fruit. Female flowers will appear immediately if the soil is slightly dry.
• The lack of fruit may be due to high air temperatures.

But why aren't cucumbers growing in the greenhouse? Why aren't there a lot of ovaries? Some gardeners, unaware of the true cause, try removing several ovaries. They think this will encourage female flowers to appear. But this is a profound misconception. Removing ovaries will do no good. It will only make the situation worse, causing the barren flowers to turn yellow and fall off.

Causes of yellowing and falling of ovaries

Recently, bunch cucumber varieties have become more popular. They produce a large harvest, forming up to seven ovaries. But, unfortunately, not every gardener can preserve them. The reasons for this can be varied, for example, improper application of organic fertilizers.

• The first reason may be too high air temperatures in greenhouses.
• Or, conversely, relative humidity.
• Some varieties lack pollinating insects due to cool weather. These plants need to be sown with pollinating varieties.
• The reason may be infrequent harvesting. It is recommended to harvest the fruits every day, as overripe fruits inhibit the growth of new ovaries.
• Insufficient soil nutrients may also be the cause. Modern varieties require high levels of nutrients in the soil. This means there may not be enough nutrients for all the ovaries. Sometimes, two fruits grow, while the rest die.

But why aren't cucumbers growing in a greenhouse? It's because there are too many ovaries, but they're not growing. Once all the reasons are identified, it's necessary to constantly monitor the cucumbers' development. If there are too many ovaries, they should be fed weekly. A mullein infusion is excellent for this.

Why aren't the cucumbers growing?

Basically the problem is with yellowing of cucumber leaves and the lack of their growth occurs in inexperienced gardeners who did not follow the advice of professionals.

Temperature and water

First, remember that cucumbers are heat-loving plants. If temperatures drop below normal, their growth slows. And at high temperatures, pollen is unable to fertilize the plant. Experts also recommend monitoring the temperature of the irrigation water. It should be warm, similar to the soil temperature. This is a very important rule to remember.

Poor nutrition

But why aren't cucumbers growing in the greenhouse? Why aren't there a lot of ovaries, but they're not growing? It's often the case that cucumber plants are receiving improper nutrition, caused by excessive amounts of nitrogen fertilizer. This reduces the phosphorus and potassium levels in the soil. To restore the nutrient balance, regular fertilizing is necessary. You can combine 10 liters of water and 15 grams of ash. Let the solution sit for 7 days, then apply the fertilizer.

Incorrect landing

Another reason cucumbers fail to bloom is over-dense planting. This means you didn't leave enough space between plants when sowing. This will prevent light from reaching the plants and will hinder ventilation. The same applies to nutrients. They won't be able to reach each plant in the required quantities. Therefore, it's important to know the correct spacing between plants. It should be approximately 20 centimeters. If you're growing a single-stemmed variety in greenhouses, meaning its shoot growth is limited, you don't need to remove side shoots.

Chemical treatment

Why aren't cucumbers growing in the greenhouse? There are a lot of ovaries, but they're not growing? Don't forget about fertilizer. If organic fertilizer isn't reaching the plants, some cucumber varieties stop growing. This procedure enriches the soil with nutrients. This helps ensure a good harvest. Fertilizing the plant regularly is essential, especially if cucumbers don't grow, about once a week. If you notice signs of starvation, you can increase the amount of fertilizer. However, the plant should be watered regularly, as it thrives on water.

If there's not enough water, the fruit will be bitter. If you don't want to use chemical fertilizers, choose varieties that can handle diseases on their own. However, spraying the plant with chemicals is not recommended.

Incorrect soil preparation

Why aren't cucumbers growing in the greenhouse? There are a lot of ovaries, but they're not growing? This can happen if the soil wasn't properly prepared before planting. Especially in the spring, various microorganisms begin to develop, causing fungal infections in plants. The soil in the greenhouse must be replaced every year, otherwise, there may be no harvest.

Why are there ovaries on the bushes, but they don’t grow?

This can happen very often, especially in hot weather or if cucumbers are grown in plastic greenhouses. This usually ends with the ovaries just forming. They are unable to grow further. They may only turn yellow and dry out, and eventually fall off.

This phenomenon may be caused by improper fertilization or a lack of fertilization. Fruit growth may also be inhibited by excessively high greenhouse temperatures. Cucumbers may stop developing due to high humidity. Incorrect fertilization also contributes to cucumbers failing to produce fruit.

Plant diseases

Cucumber bushes can die due to various diseases:

Powdery mildew can be the first cause of crop failure. This disease causes the plant's leaves to become covered with a white coating. The plants may drop their fruit and stunt their growth. In this situation, it's necessary to spray them with a special solution. To prepare, combine a liter of water with 110 ml of low-fat milk. Add a drop of iodine. Spray the cucumber plants with this solution twice a week. This remedy will help get rid of the disease.
• The plant may stop growing due to anthracnose. This disease causes spots with a pink bloom to appear on the leaves. This can be treated. First, remove all damaged leaves. Then, treat the bushes with a special solution.

We recommend:Tips from experienced gardeners on growing strawberries in the spring.
• Aphids may be the cause of cucumbers stopping growing. You can get rid of them by preparing a solution. To do this, mix 10 liters of water with 10 crushed cloves of garlic. Let the prepared solution sit for 7 hours. Then, apply this solution to the plant.

All of the above factors contribute to the formation of barren flowers on fruits. Therefore, it can be concluded that improper fruit cultivation is to blame. By following all the rules and helpful tips, you can get a good harvest.