Companion Plant Guide
Pepper
Ground cover reduces weeds.
Vegetable · Amaranth family
Spinach companion plants
Spinacia oleracea
What to plant beside spinach, what to keep apart, and how to grow it — sun, spacing, soil and the pairings used in this guide.
Photo: Veronica White on Unsplash
Overview
Growing spinach beside the right neighbour
Spinach (Spinacia oleracea) is a vegetable in the Amaranth family. Cool-season leafy green packed with nutrients.
Spinach runs to seed in heat; give it the shade cast by taller neighbours.
Give plants 4–6 in in sun or part shade. Aim for well-draining, fertile, moist soil. In most gardens the crop sits in USDA zones 2-11 and is ready in about 40-50 days.
Grows well with
What to plant with spinach
The strongest companions for spinach in this guide are Pepper, Radish, and Cilantro. Each pairing below is a reason to share a bed — pest masking, roots that do not compete, or insects that hunt the pests spinach attracts.
Radish
Succession planting works well.
Cilantro
Cool season companions.
In the bed
How to grow spinach
| Sun | Sun or part shade |
|---|---|
| Spacing | 4–6 in |
| Soil | Well-draining, fertile, moist soil |
| Hardiness | Zones 2-11 |
| Days to maturity | 40-50 |
These notes sit beside the companion lists — they are how spinach actually occupies the bed, not a substitute for local climate.
- Sow in early spring and fall
- Prefers cooler weather
- Shade in summer to prevent bolting
- Harvest outer leaves for continuous production
Questions
Spinach companion planting FAQ
What can I plant next to spinach?
Plant Pepper, Radish, and Cilantro beside spinach. Pepper: Ground cover reduces weeds. Radish: Succession planting works well. Cilantro: Cool season companions.
What should I not plant with spinach?
Spinach has no recorded antagonists in this guide.
How much sun does spinach need?
Spinach wants sun or part shade. Space plants 4–6 in apart in well-draining, fertile, moist soil.
How long does spinach take to mature?
Most spinach crops in this guide mature in 40-50 days, in hardiness zones 2-11.
Compare every pairing at a glance
Open the guide, pick spinach, and see what thrives alongside it — and what quietly holds it back.
Open the pairing guide