10 Spinach Companion Plants To Grow With Spinach 

Spinach is a popular vegetable garden staple. Successful companion planting can mean the difference between a full harvest and a wasteful one. Logan Hailey, an organic gardening expert, discusses her favorite spinach companion plants and what not to grow with spinach.  

1. Sugar Snap Peas

Sugar snaps, Fabaceae legumes, improve soil nitrogen. Through soil bacterium symbiosis, peas transform air nitrogen into plant-available nitrogen. Spinach with sugar snap peas never gets fertilized because it improves nutrition.  

2. Kale

Brassica-family kale goes well with spinach. Kale can be planted as young salad greens (my favorite) or spring-cropped plants. Like spinach, kale is cold-tolerant and best for spring or fall successions. The botanical and morphological differences are also remarkable.  

3. Swiss Chard

Spinach and rainbow chard can be planted together to increase bed space and diversity. You can also grow these crops in baby green mixes. Spinach plants like loam, and Swiss chard's beet-like roots soften and aerate the soil.  

4. Cauliflower

Using cauliflower and spinach together maximizes space. Sowing spinach with newly transplanted cauliflower lets you harvest two crops from the same location. You'll finish the spinach harvest and let slow-growing cauliflower take over when it gets too huge.  

5. Broccoli

Spinach complements broccoli, another cool-weather veggie. I prefer broccoli in a straight row in the middle with spinach 6-10" on each side. In late spring and early summer, big broccoli leaves shade spinach and keep it moist.  

6. Bok Choy

Like spinach, bok choy (particularly young bok choy) can be sown for multiple harvests. Both crops are heat-loathing, cold-tolerant, and need sunshine, fertility, and water. Bok choy can benefit from planting with non-brassica plants to avoid flea beetles.  

7. Salad Green

Because they are grown similarly, lettuces and mesclun mixtures are ideal spinach complements. Many lettuce blends mature in 30 days. These light feeders grow at equal heights, so competition is minimal.  

8. Garlic

Garlic, unlike most garden vegetables, is sown in the fall and harvested in the summer. It pairs well with spinach since spinach loves cold weather and can equal garlic's winter hardiness in most climates.   

9. Lettuce

Head lettuce compliments full-sized spinach because of their similar sizes and maturity times. Unlike salad mix plantings, head lettuce and full-size spinach grow 6” leafy heads.   

10. Watercress

Watercress is a peppery green that grows quickly and can be grown as either an annual or a permanent ground cover. As a Brassica (a type of cabbage), it won't compete with spinach or bring in pests that eat Brassica plants.  

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Also see

Lilac Companion Plants: 10 Plants to Grow With Lilacs