Can I plant shallot next to carrot?

Yes. A peer-reviewed field study (Uvah & Coaker 1984) found intercropping onion with carrot reduced carrot rust fly damage via scent-masking. Shallot is the same species as onion (Allium cepa, just a different cultivar group), so the result should carry over more reliably than most, but shallot itself wasn't the variety tested, so treat the specific magnitude as unconfirmed even though the mechanism should carry over.

Companion Planting & Garden Value: Shallot

Allium cepa var. aggregatum

Spacing: 9 per square foot. Mature height: 1-1.5 ft.

Plant these nearby

Carrot: A peer-reviewed field study (Uvah & Coaker 1984) found intercropping onion with carrot reduced carrot rust fly damage via scent-masking. Shallot is the same species as onion (Allium cepa, just a different cultivar group), so the result should carry over more reliably than most, but shallot itself wasn't the variety tested, so treat the specific magnitude as unconfirmed even though the mechanism should carry over. (source)

Keep these apart

Nothing it needs to be kept away from.

Common pairings, answered directly

Can I plant shallot next to carrot?: Yes. A peer-reviewed field study (Uvah & Coaker 1984) found intercropping onion with carrot reduced carrot rust fly damage via scent-masking. Shallot is the same species as onion (Allium cepa, just a different cultivar group), so the result should carry over more reliably than most, but shallot itself wasn't the variety tested, so treat the specific magnitude as unconfirmed even though the mechanism should carry over.

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Companion planting for Shallot: which plants to grow next to it, which to keep apart, and the reason behind each pairing.

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