17 Best Cucumber Companion Plants

1. Beans

Beans enrich the soil with nitrogen, promoting cucumber growth.
Pole beans can also provide shade during hot weather.

2. Corn

Acts as a natural windbreak and provides shade for cucumbers.

3. Lettuce

A great space-saving companion; cucumbers grow vertically while lettuce thrives below.

4. Radishes

Radishes deter cucumber beetles and other pests.

5. Carrots

These root vegetables grow well alongside cucumbers without competing for resources.

6. Peas

Like beans, peas fix nitrogen in the soil, boosting cucumber health.

7. Beets

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Beets grow well in the same soil conditions as cucumbers and don’t compete for nutrients.

8. Onions

Onions repel aphids, cucumber beetles, and other harmful insects.

9. Garlic

A strong pest deterrent, especially for aphids and spider mites.

10. Dill

Attracts beneficial insects like ladybugs and parasitic wasps that prey on cucumber pests.

11. Marigolds

Known for deterring nematodes and aphids while attracting pollinators.

12. Nasturtiums

These vibrant flowers repel aphids, squash bugs, and cucumber beetles.

13. Borage

Improves cucumber flavor and attracts pollinators like bees.

14. Oregano

Its strong scent helps repel pests while providing ground cover.

15. Sunflowers

Provide support for cucumbers to climb and attract pollinators.

16. Basil

Repels whiteflies, thrips, and aphids, and enhances the overall ecosystem health.

17. Spinach

Like lettuce, spinach grows well beneath cucumbers and enjoys the shade they provide.

What to Avoid Planting Near Cucumbers

1. Potatoes

Potatoes and cucumbers compete for similar nutrients and are prone to the same pests.

2. Melons

Melons and cucumbers belong to the same family and can attract similar pests and diseases.

3. Sage

Sage’s strong aromatic properties can stunt cucumber growth.

4. Fennel

Fennel inhibits the growth of most plants, including cucumbers.

5. Zucchini (and other squash)

These plants attract similar pests and compete for space and nutrients.

6. Aromatic Herbs (e.g., Rosemary)

These can overshadow cucumbers and compete for nutrients in the soil.

Tips for Successful Companion Planting

Spacing: Ensure adequate space between plants to avoid overcrowding and competition.
Pest Control: Combine pest-repellent plants like marigolds and nasturtiums with cucumbers for natural pest management.
Crop Rotation: Rotate cucumbers with nitrogen-fixing crops like beans and peas to maintain soil health.

By strategically pairing cucumbers with compatible plants, you can enhance growth, deter pests, and create a thriving garden ecosystem.