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Companion Plants for Borage

Borage thrives alongside Tomato, Squash, Strawberry, and more. Here's the complete guide to what to plant nearby — and what to keep at a distance.

Best Companions for Borage

These plants improve each other's growth, deter pests, or attract pollinators when planted nearby.

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Tomato

Compatible neighbors that share space and resources efficiently without competing for the same nutrients.

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Squash

Compatible neighbors that share space and resources efficiently without competing for the same nutrients.

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Strawberry

Compatible neighbors that share space and resources efficiently without competing for the same nutrients.

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Pepper

Compatible neighbors that share space and resources efficiently without competing for the same nutrients.

⚠️ What Not to Plant Near Borage

These combinations can stunt growth, attract pests, or compete heavily for the same nutrients.

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Fennel

Fennel is allelopathic — its roots release chemicals that inhibit germination and growth in most vegetables.

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🤝 Plants That Benefit from Borage

These plants list Borage as a beneficial neighbor — so the relationship goes both ways.

📐 How to Plant Borage with Companions

1️⃣

Start with spacing

Plant Borage at its recommended spacing (18" apart) first. Don't crowd it — healthy air circulation reduces disease.

2️⃣

Add herbs at the edges

Aromatic companions like Tomato work well tucked 6–12" around the perimeter of the Borage planting.

3️⃣

Watch for height conflicts

Place taller companions (sunflowers, corn) on the north side of the bed so they don't shade Borage. Low-growing herbs and flowers can go anywhere in the bed.

4️⃣

Keep incompatible plants a bed away

Fennel should be planted in a separate bed — ideally 3+ feet away — to prevent root exudate and pest crossover.

Plan a companion bed for Borage

Use the interactive planner to drag Borage and its companions onto a canvas, see spacing footprints, and catch conflicts before you plant.

Frequently Asked Questions

What are the best companion plants for Borage?

The best companion plants for Borage are Tomato, Squash, Strawberry, Pepper. These plants either deter pests, attract beneficial insects, or improve growing conditions when planted nearby.

What should you not plant near Borage?

Avoid planting Borage near Fennel. These plants can compete for nutrients, inhibit growth, or attract shared pests.

Can you plant Borage in a raised bed with companions?

Yes — raised beds are ideal for companion planting because you control exact spacing and layout. Use the square-foot method to place Borage alongside its best companions within the same bed.

What plants benefit from being near Borage?

Heirloom Tomato, Tomato all benefit from proximity to Borage.

How far apart should I plant Borage and its companions?

Give Borage its full 18" spacing. Plant compact companions like herbs 6–12" away at the bed edge, and taller companions (sunflowers, corn) where they won't shade the main crop. In raised beds, use the square-foot grid method for precise spacing.

Does companion planting actually work for Borage?

Research supports several companion planting mechanisms: aromatic herbs like basil can reduce aphid populations near tomatoes; marigolds release thiophene compounds that deter nematodes; and flowers attract parasitic wasps that control caterpillars. Results vary by garden, but most gardeners see measurable pest reduction within one season.

Want the full Borage growing guide?

Spacing, planting dates by ZIP code, seed saving tips, and more.

View Guide →