How far apart should I plant cucumbers?

Author: Prof. Dwight Heller III  |  Last update: Tuesday, January 13, 2026

Quick Guide to Growing Cucumbers Plant cucumbers when average daily temperatures reach the mid-70s° F. Space cucumbers 36 to 60 inches apart (12 inches apart for trellised plants) in an area with abundant sun and fertile, well-drained soil with a pH of 6.0 to 6.8.

How close can you plant cucumbers together?

You can comfortably grow two cucumber plants, spaced 6 inches apart, within a square foot. You may think that's not much, but take into consideration that cucumber plants are vigorous vines that can produce approximately five pounds of fruit per plant.

What happens if you plant cucumbers too close?

Fungal diseases like these thrive in humid conditions, and the closer your plants are spaced, the lower the air circulation is around them. Planting cucumber plants too closely can lead to a higher risk of disease. By following good cucumber plant spacing guidelines, you'll reduce disease prevalence.

What is the spacing for cucumbers?

Spacing: Sow two seeds per place of bed which is 2.5m wide and use spacing of 60cm between seeds. Sowing depth: Seeds are sown at the depth of 2-3cm.

What should you not plant near cucumbers?

Aromatic Herbs: Herbs like sage and rosemary, while useful in cooking, can inhibit the growth of cucumbers. They contain natural oils that can slow down the growth of cucumber plants. Brassicas: Plants like broccoli, cabbage, and cauliflower can compete with cucumbers for the same nutrients in the soil.

Cucumber Plant Spacing

Can peppers and cucumbers be planted together?

Peppers and chili go well next to cucumbers, especially in a greenhouse you can plant these crops together. To prevent mildew, garlic, onions, chives, marigolds and various herbs such as basil can help.

Should cucumbers be ground or trellis?

Let Cucumbers Climb

Trellised cucumbers are easier to pick and less susceptible to disease. Cucumbers do best if they can climb instead of spread over the ground.

What is the trick to growing cucumbers?

Water often enough to keep the soil slightly moist all the time. Cucumbers will be small and can taste bitter if they get stressed for water. Mulch the soil around the plants to keep in moisture.

Should I water cucumbers every day?

In the grand scheme of things, cucumbers crave a consistent 1-2 inches of water weekly. But let's not oversimplify. Sandy soils dry out faster than a gossip in a small town, necessitating more frequent watering. Clay soils, the stage-five clingers of the garden, retain moisture longer and demand less.

Can you plant cucumbers and tomatoes near each other?

Cucumbers and tomatoes can be planted by each other as they share similar growing habits and therefore you can grow tomatoes by cucumbers. Greg Volente from Greenhouse Today explains that: 'Cucumbers and tomatoes are two vigorous growers in a spring garden.

Can watermelon be grown near cucumbers?

Because other members of the Cucurbitae family are all attacked by cucumber beetles, planting watermelons next to these crops is not recommended: Cucumbers. Summer squash/zucchini. Pumpkins.

How far apart should I plant tomatoes?

In Ground: If you're planting directly in the ground, you may have more space and be planting in rows. In that case, space your tomatoes 18-24 inches apart along a row, but space your rows about 36 inches apart. This will leave enough room for you to work between rows.

Can bell peppers and tomatoes be planted together?

Best Companion Plants for Peppers. Tomatoes: Peppers and tomatoes are both members of the nightshade family, and they complement each other well. Basil: Basil is a fragrant herb that can repel pests such as aphids, flies, and spider mites.

What is the best companion plant for zucchini?

What Goes Well With Zucchini?
  • root and tuber vegetables such as beet, carrots and celery.
  • onions, leeks and spring onions.
  • lettuce.
  • corn.
  • flowers such as camomile, sunflowers, borage and marigolds.
  • beans.
  • tomatoes, eggplants and peppers.
  • herbs such as basil, parsley and oregano.

How deep should cucumbers be planted?

Planting 6 inches apart and 1 inch deep is typical for many cucumber varieties. If you're planting transplants, follow the instructions on the plant tag or label. Water thoroughly. Use a watering can with a sprinkler head or a hose on a gentle setting to water your newly planted seeds.

Do cucumbers need full sun?

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. Harvest frequently to get more fruits during the season.

What is the best fertilizer for cucumber?

However, as soon as the first flowers start to appear the cucumber plant requires a higher level of potassium to encourage further flowering and subsequent fruiting. A high potassium fertiliser, such as tomato feed or a balanced fertiliser mix including potassium can be used as per the instructions.

Do zucchini and cucumbers grow well together?

As with other squash plants, it is not advisable to plant zucchini and cucumbers together. Cucumbers are members of the Cucurbitaceae family, just like zucchini and so they will compete for space and nutrients. Also, growing several similar plants in the same area can make it easier for pests to find the plants.

What not to plant next to cucumber?

Here are a few plants that do not grow well with cucumbers:
  • Pumpkin (Cucurbita)
  • Squash (Cucurbita)
  • Courgette (Cucurbita pepo)
  • Potato (Solanum tuberosum)
  • Broccoli (Brassica oleracea var. italica)
  • Cabbage (Brassica oleracea var. capitata)
  • Kale (Brassica oleracea)
  • Sage (Salvia officinalis)

Is it better to grow cucumbers on a trellis or on the ground?

Even in large gardens where cucumbers have room to spread out along the ground, growing cucumbers on a trellis provides many benefits. Trellis-grown vines produce higher yields than those on the ground, and by growing upward instead of outward, you can produce significantly more fruit per square foot.

What do you put in the soil before planting cucumbers?

Before planting, add about 2 inches of organic matter (aged manure and/or compost) and a complete fertilizer to the area. The soil should be moist but well-draining (not soggy) and have a pH of around 6.5 to 7.0.

How many cucumber plants are in a 4x4 raised bed?

A healthy square foot gardening cucumber plant has a yield of approximately 5 pounds, and can also be grown vertically with support from a trellis. If you use the square foot gardening method in a 4x4 foot raised garden bed you can comfortably grow eight tomato plants and 16 cucumber plants at the same time!

Why do you plant cucumbers in mounds?

Planting cucumber seeds on a hill helps keep water away from the base of the plant and allows the ground to be warmer for planting. However, planting in a raised bed that drains well or when trellising vines, you don't have to plant in mounds.

What is the best support for cucumber plants?

We recommend one made of natural fibers that are biodegradable like sisal or jute. String the plant in multiple areas, leaving two or three inches of space in between. The purpose is to make sure your cucumber plant is propped upright and in the proper position to grow vertically.

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