Companion Plant Guide
Squash
Part of three sisters with corn.
Vegetable · Legume family
Bean companion plants
Phaseolus vulgaris
What to plant with beans, what to keep apart, and how to grow them — sun, spacing, soil and the reason behind every pairing.
Photo: Bob Bowie on Unsplash
Overview
Growing beans beside the right neighbour
Bean (Phaseolus vulgaris) is a vegetable in the Legume family. Nitrogen-fixing legume that's easy to grow in warm weather.
Beans, corn and squash — the three sisters, still the most efficient bed there is.
Give plants 4–6 in in full sun. Aim for well-draining soil, not too rich. In most gardens the crop sits in USDA zones 2-11 and is ready in about 50-60 days.
Grows well with
What to plant with beans
The best companion plants for beans in this guide are Squash, Corn, Cucumber, and Pumpkin. Each pairing below is a reason to share a bed — pest masking, roots that do not compete, or insects that hunt the pests drawn to beans.
Corn
Natural trellis, nitrogen fixation.
Cucumber
Nitrogen fixing benefits cucumber growth.
Pumpkin
Ground cover partnership works well.
Keep apart
What not to plant with beans
Keep beans away from Fennel and Onion. These neighbours compete for the same food, release chemicals that stunt growth, or otherwise hold the crop back.
Fennel
Inhibits bean growth and germination.
Onion
Alliums stunt beans and slow nitrogen fixation.
In the bed
How to grow beans
| Sun | Full sun |
|---|---|
| Spacing | 4–6 in |
| Soil | Well-draining soil, not too rich |
| Hardiness | Zones 2-11 |
| Days to maturity | 50-60 |
These notes sit beside the companion lists — they are how bean actually occupies the bed, not a substitute for local climate.
- Plant after all frost danger has passed
- Don't overwater - prefers drier conditions
- Harvest pods when young and tender
- Leave mature beans on plant to mature for storage
Questions
Bean companion planting FAQ
What can I plant next to beans?
Plant Squash, Corn, Cucumber, and Pumpkin beside beans. Squash: Part of three sisters with corn. Corn: Natural trellis, nitrogen fixation. Cucumber: Nitrogen fixing benefits cucumber growth. Pumpkin: Ground cover partnership works well.
What should I not plant with beans?
Keep beans apart from Fennel and Onion. Fennel: Inhibits bean growth and germination. Onion: Alliums stunt beans and slow nitrogen fixation.
How much sun do bean plants need?
Bean plants want full sun. Space them 4–6 in apart in well-draining soil, not too rich.
How long do bean plants take to mature?
Most bean plants are ready in about 50-60 days. Bean grows in USDA hardiness zones 2-11.
Compare every pairing at a glance
Open the guide, pick bean, and see what thrives alongside it — and what quietly holds it back.
Open the pairing guide