Companion Plant Guide
Bean
Three sisters partnership for nitrogen.
Vegetable · Cucurbit family
Squash companion plants
Cucurbita pepo
What to plant with squash, what to keep apart, and how to grow it — sun, spacing, soil and the reason behind every pairing.
Photo: Marine Le Gac on Unsplash
Overview
Growing squash beside the right neighbour
Squash (Cucurbita pepo) is a vegetable in the Cucurbit family. Large-leafed vining plant that needs plenty of space.
Borage in flower doubles pollinator visits — fewer aborted fruits.
Give plants 24–36 in in full sun. Aim for rich, well-draining soil with compost. In most gardens the crop sits in USDA zones 2-11 and is ready in about 50-100 days.
Grows well with
What to plant with squash
The best companion plants for squash in this guide are Bean, Corn, Nasturtium, Borage, Radish, Marigold, and Oregano. 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 squash.
Corn
Classic three sisters with bean.
Nasturtium
Trap crop for pests.
Borage
Draws in the bees that set more fruit.
Radish
Radishes sown around the vines are said to deter squash bugs and beetles.
Marigold
Deters beetles and draws pollinators.
Oregano
Flowers draw pollinators to the vines.
Keep apart
What not to plant with squash
Keep squash away from Fennel. These neighbours compete for the same food, release chemicals that stunt growth, or otherwise hold the crop back.
Fennel
Inhibits squash growth.
In the bed
How to grow squash
| Sun | Full sun |
|---|---|
| Spacing | 24–36 in |
| Soil | Rich, well-draining soil with compost |
| Hardiness | Zones 2-11 |
| Days to maturity | 50-100 |
These notes sit beside the companion lists — they are how squash actually occupies the bed, not a substitute for local climate.
- Plant in mounds for water drainage
- Provide plenty of space for vining
- Water at soil level to prevent mildew
- Harvest when skin is hard but before frost
Questions
Squash companion planting FAQ
What can I plant next to squash?
Plant Bean, Corn, Nasturtium, Borage, Radish, Marigold, and Oregano beside squash. Bean: Three sisters partnership for nitrogen. Corn: Classic three sisters with bean. Nasturtium: Trap crop for pests. Borage: Draws in the bees that set more fruit. Radish: Radishes sown around the vines are said to deter squash bugs and beetles. Marigold: Deters beetles and draws pollinators. Oregano: Flowers draw pollinators to the vines.
What should I not plant with squash?
Keep squash apart from Fennel. Fennel: Inhibits squash growth.
How much sun do squash plants need?
Squash plants want full sun. Space them 24–36 in apart in rich, well-draining soil with compost.
How long do squash plants take to mature?
Most squash plants are ready in about 50-100 days. Squash grows in USDA hardiness zones 2-11.
Compare every pairing at a glance
Open the guide, pick squash, and see what thrives alongside it — and what quietly holds it back.
Open the pairing guide