Cucumber Seedlings Dying? Use These Tips!

Cucumber Seedlings Dying

Having a home garden is an amazing thing. You can grow various fruits, vegetables, and herbs to get the best quality and most nutritious diet. While there are various things that you can grow in your home garden, cucumber is one of the most common plants. But are your cucumber seedlings dying?

Well, do not worry; we are here to answer all your questions about cucumber seedlings dying and the way to revive them.

What Do Cucumber Seedlings Look Like?

The “seed leaves” are the first two leaves to emerge following germination. These are round in shape with somewhat pointed tips. “True leaves” are the ones that sprout following the seed leaves and resemble little cucumber leaves. This all combined is known as the cucumber seedling.

What Is Killing My Cucumber Seedlings?

There can be plenty of reasons that might be causing damage or killing your cucumber seedlings. The top ones include:

  • Pests

These are tiny insects like cucumber beetles that can eat away the plant. This can cause holes in the leaves or cucumber itself, causing damage to the plant and sometimes dying.

  • Incorrect soil temperature

Your cucumber seedling will struggle to germinate if the soil is excessively hot or cold, and it will eventually die. The optimal soil temperature is between 65 and 75 degrees Fahrenheit.

  • Not sufficient depth during planting

If you plant the seeds too shallow, they will receive too much light and will not thrive. Seeds planted too deep will not germinate because sunlight cannot reach them.

  • Disease

If the seeds are soaked too much in water or are overly wet, they will get the dumping-off disease. In such soil conditions, the pathogen will thrive and kill the seeds before they can even germinate.

  • Moss or mold

Moss and mold may emerge when your seeds are put in a container and left to soak in water. Cucumber seedlings might slowly perish when the roots rot.

  • Overcrowding

You are not assisting your cucumber seedling in germinating quickly when you place too many seedlings in one area or container. The seeds will fight for survival, resulting in withering or death in the long term.

  • Problem with sunlight

Excessive sunlight will cause the plant to wilt and die, while lack of sunlight will hamper the growth of the seedling. Either of the situations will cause the seedling to die.

  • Inappropriate fertilizer

Too much of the fertilizer can cause the fertilizer to burn, while too little of the fertilizer can cause the lack of nutrients required by the plant to grow. Either way, the cucumber seedlings will ultimately die.

  • Cutworms

Cucumber stems, roots, and leaves can all be eaten away by cutworms. These bugs will curl and hide under the earth, gently eating away at your cucumber seedlings, and your cucumber will stop growing shortly.

  • Existence of fungus

The fungus can also grow on cucumber seedlings before they germinate. Even if your cucumber seedlings thrive, their growth will be low, and they will be weak.

  • Compacted soil

There will be insufficient air space and poor drainage in such soil. Because there is no way for water to escape, it will soak the soil, eventually destroying the seeds.

How Do You Revive A Cucumber Seedling?

Most of the problems with the cucumber plant start from the roots that can be due to wrong soil, overwatering, or even pests. Correctly diagnosing the reason can help to reach the right resolution. The ways to revive thee cucumber seedling include:

  • Watering correctly

Water the cucumber at the button first and water 1-2 inches daily to keep the soil moist. During a dry climate, water is more frequent.

  • Mulch the plant

To decrease evaporation and conserve soil moisture, apply a 2-inch layer of straw mulch to the soil. Mulches also decrease plant competition and reduce pest vectors by suppressing weed growth.

  • Use fertilizers

When the cucumber plants begin to send out vines, apply 1/4 cup of 21-0-0 nitrogen fertilizer to each 10-foot row. Water the fertilizer into the soil 6 inches away from the plants.

  • Watch for pests

Spray the damaged plants with a ready-to-use insecticidal soap or use a strong water spray to remove the cucumber plant pests. Spray every three days until the aphids have vanished.

  • Avoid infestations

Cover immature plants with a floating row cover to avoid cucumber beetle infestations. Cucumber beetles spread the fungal disease wilt, which cucumbers seldom recover from.

  • Avoid fungal infections

Crop rotation can help you avoid this issue. To prevent the fungus from spreading, choose resistant cucumber types and kill any affected plants.

Why Are My Cucumbers Shriveling Up And Dying?

When the cucumbers fail to get the proper nutrients or are exposed to inappropriate sunlight or overwatered, they will start to shrivel up and die. Additionally, if pests or infections are attacking the plant, the chances of the cucumber plant dying increases quite prominently.

What Does An Overwatered Cucumber Plant Look Like?

Overwatering causes leaf yellowing. Roots become damaged and unable to absorb nutrients when submerged in water. Overwatered leaves become stunted and limp, and they may fall off. Check the drainage around the cucumber’s base if this occurs and reduce watering.


What Is the Best Way To Fight From Fungus On Cucumber Seedling?

Using neem oil on the surrounding soil is the greatest technique to combat such fungus or mildew. Make sure you don’t apply the oil when it’s hot outside and wait until it’s below 80 degrees Fahrenheit before doing so. You can even use insecticides or pesticides to avoid the fungus.

How Can You Control Bacterial Wilt In Cucumber Seedlings?

Cucumber seedlings with bacterial wilt can be treated with this simple procedure. Cucumber seedlings require hot air with a temperature of 112 degrees Fahrenheit and relative humidity of 75%. For 30 minutes, leave the seedlings in this position.

Can You Grow Cucumbers And Tomatoes Together?

Yes, tomatoes and cucumbers are wonderful companion plants. They grow well together, especially in the greenhouse. They thrive under incomparable soil conditions and require about the same time to grow and harvest.

How Often Should Cucumbers Be Watered?

Cucumbers thrive with a regular, deep watering once or twice a week or more frequently if the weather is particularly hot for a few days. Fruit with insufficient or uneven moisture can be strangely shaped or taste bad.

Do Cucumbers Need Full Sun?

Cucumbers thrive in loose sandy loam soil, although you can also plant them in well-drained soil. Cucumbers require direct sunshine to grow well. Plant them to get water and nutrients because their roots stretch 36 to 48 inches deep.

How Long Does A Cucumber Plant Last?

Cucumbers are produced as annuals, which do not regrow after the growing season. The plant dies and cannot be regrown after about 70 days. If the temperature dips below freezing, plants will wither and die.

Why Do My Cucumber Plants Have Lots Of Flowers But No Fruit?

If there are no male or female flowers on the cucumber plant, it will blossom but not yield fruit. Pollination failure results in a lack of fruit. Pollination and flower output are affected by growth factors such as temperature, weather, and nitrogen levels.

Can Cucumbers Self Pollinate?

Cucumbers pollinate themselves. Self-pollinating plants do not pollinate themselves, but they produce both male and female flowers on the same plant.


Cucumbers are quite simple to grow. They do not need any special care and can be grown at home. Taking care of them and keeping them away from excessive sun, overwatering, pests, and fungus can help a lot. Ensure to avoid the harmful factors to the cucumber seedlings to help them grow well.

Owen Jung

Owen is the co-founder of Our Daily Homestead. Own grew up in his parent's homestead in Illinois and learned all things gardening, sustainability, and off-grid living while he was young. He now shares his knowledge through this website.

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