5 Best Fertilizer For Cucumber 2020 Guide

The best fertilizer for Cucumber. Cucumbers (Cucumis Sativus) belong to the Cucurbit family. It belongs in one family, including pumpkins (Cucurbita Maxima), squash, and gourds (Cucurbita Pepo). Cucumis Sativus is an annual vine grown throughout the United States of America.

Cucumis Sativus produce best during prolonged, and warm summer months. Standard Cucumber vines proliferate and need vertical support or trellis.

While dwarf bush Cucumbers support themselves, these Cucumbers do well in small garden plots or containers. To grow the best Cucumber, organic soil amendments must be met the nutrient requirements.

Cucumbers thrive well in full sun. The soil must be well-drained, moist, and fertile.

Cucumbers favor a slightly acidic pH soil, between 6.0-6.5. Cucumbers require high water and need consistent moisture.

For proper growth, keep their leaves dry while you are watering to prevent fungal diseases. Vertically-grown plants may require much more watering because they lose moisture more easily.

After the cucumber plants have produced blossoms, you should apply a balanced, all-purpose fertilizer. An all-purpose water-soluble fertilizer will do well. You can also apply a balanced granular fertilizer.


  • Common Name: Cucumber 
  • Scientific name: Cucumis Sativus
  • Type: Annual
  • Family: Cucurbitaceae
  • Native: East Indies
  • USDA Hardiness Zone: 2 to 11
  • Height: between 0.75 to 1.50 feet
  • Spread: between 3 to 8 feet
  • Bloom Time: Seasonal bloomer
  • Bloom color: Yellow
  • Light requirement: Full sun
  • Water: Medium
  • Maintenance: Medium
  • Suggested Use: Annual, Vegetable
  • Flower: Showy
  • Fruit: Showy, Edible

What is the best fertilizer for Cucumber (Cucumis Sativus)?

The best way to know what is the best fertilizer for Cucumber is by discovering your soil type. The soil type helps determine how much and what kind of nutrients required by your Cucumbers (Cucumis Sativus).

With sandy soil, it drains essential substances, and the ground becomes nutrient-poor very fast. On the other hand, heavy soils lock nutrients up.

You should add compost before planting Cucumber to improve garden soil. The organic matter in compost enriches light sandy soils and lightens heavy clay soils.

Well-aged compost is the best source of food and nutrients for Cucumbers. There is only two percent nitrogen in compost.

Compost releases nutrients slowly over a lot of years. It adds nutrient reserves that stay available continuously in the soil for a long time.

Generally, Cucumbers require low Nitrogen fertilizer requirements. They need high Potassium and high Phosphorus levels. When you choose a commercial fertilizer formula, the first (N) of the three numbers should be much lower than the other two (PK).


List of the best fertilizer for Cucumber

1. 18-3-6 All Purpose Liquid Fertilizer And Micronutrients For Cucumber

18-3-6 is an all-purpose liquid fertilizer formulated for outdoor and indoor application. The ingredients are Total Nitrogen (N) 18%, available Phosphoric Acid (P2O5) 3%, Soluble Potash (K2O) 6%, Copper (Cu) .05%, Iron (Fe) .1%, Manganese (Mn) .05%, and Zinc (Zn) .05%.

These ingredients are derived from Potassium Carbonate, Copper EDTA, Manganese EDTA, Zinc EDTA, Urea, Urea-Triazone Solution, Tetrapotassium Pyrophosphate, and Iron HEDTA.

You can apply one to two oz. of fertilizer to one gallon of water, and water well. Apply one time every fourteen days. Use three oz. of fertilizer for every 1000 square feet. It is an excellent choice for a cucumber plant.


2. Dr Earth Organic 5 Tomato, Vegetable And Herb Fertilizer Poly Bag For Cucumber

This garden fertilizer comes in a four-pound bag that is an excellent choice for Cucumber. The fertilizer can help provide the production of more abundant Cucumber with more tasty and nutritious vegetables.

The fertilizer gives optimum levels of essential plant nutrients such as fishbone meal, bone meal, feather meal, alfalfa meal, Potassium Sulfate, kelp meal, kelp flour, and rock phosphate. All these ingredients remove the need for harmful chemical fertilizers.

The formulation also consists of Ecto- and endo-mycorrhizae to provide the Cucumber to withstand drought tolerance, improve nutrient availability and increased plant performance. Nutrients are fast-released and feed continuously for several months.

Apply this fertilizer one time every month during Cucumber’s growing season.


3. Miracle-Gro Water Soluble Plant Food Vegetables and Herbs

Miracle-Gro Water Soluble Plant Food Vegetables And Herbs can provide food for your Cucumber effortlessly and instantly as well as vegetables and herbs. It is one of the best fertilizers for Cucumber, for tomatoes, for squash, for peppers, carrots, and basil.

When you apply this fertilizer for Cucumber, the plant needs water, sunlight, and nutrition to prosper and grow all season long. For best Cucumber results, feed the every seven to fourteen during its growing stage.

You can soak the soil at the base of each plant to fertilize the roots. With two pounds, the formulation feeds approximately eight hundred square feet of garden area.

Combine 1 1/2 tablespoons per 1 1/2 gallons of water. For best results, 1 1/2 gallons covers about fifteen square feet. You must read the instruction label for application.


4. Lilly Miller Morcrop Tomato And Vegetable Food 5-10-10 For Cucumber

This 5-10-10 NPK formulation fertilizer is specifically designed to produce many great-tasting vegetables, including Cucumber. It is a slow-release fertilizer for steady and lush plant growth. The ingredients consist of essential plant minerals and natural ingredients.

Lilly Miller combines natural ingredients with plant foods to produce plant food that gives Nitrogen. Apply this fertilizer at planting time. After that, apply every four to six weeks during the growing season.

The fertilizer product is ready to use. You do not require to mix with water. Water well. Blend the fertilizer lightly into the topsoil but do not damage the roots.


5. Miracle-Gro Performance Organics Edibles Plant Nutrition For Cucumber

The organic ingredients in this fertilizer product are formulated for growing Cucumber, tomatoes, vegetables, fruits, and herbs. When you apply this plant food, it will instantly feed edible plants in containers and in-ground.

Apply every seven days by using a watering can. One gallon can cover 10 square feet of garden.

The ingredients consist of NPK, calcium, zinc, iron, and manganese. These ingredients are derived from bone meal, soy protein, phosphate rock, and other elements.


What is the best time to fertilize Cucumber?

Use a low nitrogen, high potassium, and high phosphorus formula. The best time to fertilize Cucumber is to apply fertilizer at planting.

After that, apply fertilizer one week after bloom. You should also apply fertilizer every three weeks. Mix directly to the soil around the Cucumber.

You can also work a granular fertilizer into the soil. It would help if you kept in mind to avoid over-fertilize, or the fruits will get stunted.


How often should you fertilize Cucumber?

You should apply fertilizer one time at planting. One time at one week after the Cucumber bloom. The regular application should be every 90 days directly to the soil around the plants.


Frequently ask question

When should you feed Cucumbers?

Keep the Cucumber plants well watered to help them mature. By watering the plant properly, you also can increase yields.

You must keep the soil moist, but not wet. Feed your Cucumber plants with a fertilizer for vegetables every three weeks.


Why are the Cucumbers leaves turning yellow?

When Cucumbers become overripe, their green leaves coloring starts to fade—this event causing a yellowing pigment. A yellow Cucumber can also be the result of a not a balanced nutrient, lack of sunlight, attack by a virus, and overwater.


How much fertilizer does a cucumber plant need?

The Nitrogen helps the Cucumber plant foliage grow at the maximum. The Potassium and Phosphate will help with fruit production. To apply fertilizer, you should read the manufacturer’s directions. Commonly, fertilizer for Cucumber is applied at a rate of 1 1/2 pounds per 100 square feet.


How many Cucumbers will one plant produce?

Commonly, a healthy Cucumber plant produces about five pounds of Cucumbers per plant. Plan on growing about two to three plants per person in your household.


5 Best Fertilizer For Cucumber 2020 Guide
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