Companion Plant Guide
Lettuce
Fast growing, breaks soil compaction.
Vegetable · Brassica family
Radish companion plants
Raphanus sativus
What to plant beside radish, what to keep apart, and how to grow it — sun, spacing, soil and the pairings used in this guide.
Photo: Caroline Attwood on Unsplash
Overview
Growing radish beside the right neighbour
Radish (Raphanus sativus) is a vegetable in the Brassica family. Quick-growing root vegetable perfect for succession planting.
The fastest catch crop there is — sow into any gap and pull it before it crowds.
Give plants 2–3 in in sun or part shade. Aim for well-draining, fertile soil. In most gardens the crop sits in USDA zones 2-11 and is ready in about 25-30 days.
Grows well with
What to plant with radish
The strongest companions for radish in this guide are Lettuce, Cucumber, and Spinach. Each pairing below is a reason to share a bed — pest masking, roots that do not compete, or insects that hunt the pests radish attracts.
Cucumber
Soil loosening for cucumber.
Spinach
Succession planting partnership.
In the bed
How to grow radish
| Sun | Sun or part shade |
|---|---|
| Spacing | 2–3 in |
| Soil | Well-draining, fertile soil |
| Hardiness | Zones 2-11 |
| Days to maturity | 25-30 |
These notes sit beside the companion lists — they are how radish actually occupies the bed, not a substitute for local climate.
- Sow seeds every 2 weeks for continuous harvest
- Thin seedlings to proper spacing
- Harvest when small and tender
- Breaks up soil for other crops
Questions
Radish companion planting FAQ
What can I plant next to radish?
Plant Lettuce, Cucumber, and Spinach beside radish. Lettuce: Fast growing, breaks soil compaction. Cucumber: Soil loosening for cucumber. Spinach: Succession planting partnership.
What should I not plant with radish?
Radish has no recorded antagonists in this guide.
How much sun does radish need?
Radish wants sun or part shade. Space plants 2–3 in apart in well-draining, fertile soil.
How long does radish take to mature?
Most radish crops in this guide mature in 25-30 days, in hardiness zones 2-11.
Compare every pairing at a glance
Open the guide, pick radish, and see what thrives alongside it — and what quietly holds it back.
Open the pairing guide