fertilizer for cucumbers
Charlotte Adams
Updated on June 12, 2026
BEST OVERALL: Miracle-Gro 2000422 Plant Food.BEST BANG FOR THE BUCK: Jobe’s 09026NA Plant Food Vegetables & Tomato.BEST ORGANIC: Dr. BEST WATER-SOLUBLE: Miracle-Gro Water Soluble Plant Food.BEST FOR CONTAINERS: Jobe’s 06028 Fertilizer Spikes Vegetable and Tomato.
What do you feed cucumber plants with?
Feed your cucumber plants with a high nitrogen feed every two weeks. Cucumber plants like sun, but are prone to scorching, so some shade is preferable. Encourage greenhouse varieties to climb to boost yields. Harvest fruits early in the day while it’s cool.
Should I fertilize my cucumber plants?
Cucumber plants need a small dose of fertilizer every 10 to 14 days for maximum growth and production. The best way to do this is by using liquid versions that absorb via the roots and foliage.
What is the best fertilizer for tomatoes and cucumbers?
Fertilizer for Tomatoes and Cucumbers in Containers
To create a concentrated solution of liquid fertilizer, dissolve 2 cups of a general fertilizer like 8-16-8, 10-20-10 or 12-24-12 in 1 gallon of warm water and stir until the fertilizer has dissolved.
How often should you fertilize cucumbers?
Apply 1 week after the plant starts blooming and every 3 weeks thereafter, directly to the soil around the plants. Or, you can work a granular fertilizer into the soil. Do not over-fertilize or the fruits will get stunted.
What is the best NPK fertilizer for cucumbers?
MasterBlend Tomato & Vegetable Fertilizer
This water-soluble fertilizer can be used on hydroponic and garden plants. It has a 4-18-38 NPK ratio which means it has the highest potassium content and nitrogen levels which is perfect for growing cucumbers.
Is Epsom salt good for cucumbers?
The cucumbers grow in the warm weather, but as days pass, it loses its vigor and looks weathered down. Not only that but the plant starts to produce less and fewer fruits. Epsom salt gives this vegetable plant a boost that rejuvenates them. The trick is to apply it at least once in the mid-season and not weekly.
How do you increase the yield of a cucumber?
How To Increase Cucumber Yield Summary
Use a large container.Get the soil right.Water regularly.Feed regularly.Add correct supports.Attract pollinators.Pollinate by hand.Pick regularly.
How do you keep cucumber plants healthy?
Cucumbers will grow quickly with little care. Be sure they receive an inch of water every week. Make the most of your food growing efforts by regularly feeding plants with a water-soluble plant food. When soil is warm, add a layer of straw mulch to keep fruit clean and help keep slugs and beetles away.
Is tomato feed OK for cucumbers?
A tomato feed will be near ideal for peppers and aubergines, all three belong to same family, solanaceae, as potatoes but cucumbers are cucurbits – members of the Cucurbitaceae family – like courgettes, marrows, pumpkins and squashes. A tomato feed is not ideal for this family and especially not the cucumber.
Are coffee grounds good for cucumber plants?
Cucumbers plants are known to grow well in rich and organic soil. The presence of coffee grounds in the soil will help the cucumber plants grow healthier and better.
How do you add nitrogen to a cucumber plant?
Growing Cucumbers in Containers
You can also add a timed-released, low-nitrogen, high-potassium pelleted fertilizer with a N-P-K ratio similar to 2-3-6. Apply 1 tablespoon per pot at planting, or according to label directions if they differ from this rate, and again when you see the first true leaves on your cucumbers.
Should you water cucumbers everyday?
Give them full sun and plenty of space to grow, and train them on a trellis or fence. Cucumbers perform best with regular, deep watering once a week or so and with more frequency if the weather is very hot for a period of days. Inadequate or inconsistent moisture can cause oddly shaped or poor-tasting fruit.
What nutrients do cucumbers like?
Gardening FAQ
Cucumbers need moderate nitrogen and high phosphorus and potassium, so an organic plant food with the first number lower than the last two (like 3-4-6) is good. Tomatoes need soil that is high in all nutritional components, and the samefertilizer with slightly higher P and K numbers, will work well.
When should I apply 10 10 10 fertilizer to my vegetable garden?
When should I apply 10 10 10 fertilizer to my vegetable garden? You should apply it every 30 days to your vegetable garden through the growing season, starting about two weeks after your seedlings start growing.
What do Overwatered cucumbers look like?
Leaf yellowing is a common sign of overwatering. When roots are sitting in water, they become damaged and unable to absorb nutrients. When leaves are yellow from overwatering, they will often be stunted and limp and may fall off. When this happens, check drainage around the base of the cucumber and reduce watering.
Is bone meal good for cucumbers?
Yes. Bone meal is packed with phosphorus, calcium and nitrogen that will benefit your cucumber plant. These nutritional elements will benefit your plant to grow its root system and improve foliage.
Why are my cucumbers not producing fruit?
A cucumber plant will flower but produce no fruit if there is a lack of either male or female flowers on the plant. A lack of fruit will also occur due to poor pollination. Growing conditions (such as temperature, weather, and nitrogen levels) also affect pollination and flower production.