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Leek Companion Planting

Allium ampeloprasum

Allium (Amaryllidaceae) -- cool season

1 beneficial companion
0 antagonistic relationships

Good Companions for Leek

CarrotDaucus carota subsp. sativus
BeneficialPest SuppressionDocumented

Leek volatiles deter carrot fly (Psila rosae) while carrot foliage volatiles disrupt leek moth (Acrolepiopsis assectella) host-finding. This represents a documented case of reciprocal pest suppression.

Traditional European companion planting with strong research support. Plant in alternating rows for best reciprocal protection.

Sources
  • Reciprocal pest-suppressive effect of carrot-leek intercrops -- Agriculture, Ecosystems & Environment (1992)
  • Intercropping for pest management: the carrot-leek system -- Entomologia Experimentalis et Applicata (1995)

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Carrot