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Collard Greens Companion Planting
Brassica oleracea var. viridis
Mustard (Brassicaceae) -- cool season
2 beneficial companions
0 antagonistic relationships
Good Companions for Collard Greens
Sweet AlyssumLobularia maritima
BeneficialPest SuppressionSupported
Alyssum floral resources support hover flies and parasitoid wasps that control aphids and caterpillars on collards. Same brassica-alyssum conservation biocontrol mechanism.
Collards are long-season brassicas -- alyssum provides season-long beneficial insect habitat.
Sources
- Flower power: promoting pest natural enemies of key brassica pests with sweet alyssum -- HortScience (2013)
ThymeThymus vulgaris
BeneficialPest SuppressionSupported
Thyme volatiles (thymol, carvacrol) deter cabbage white butterfly oviposition on adjacent brassicas through olfactory disruption.
Plant thyme as a permanent border near collard beds.
Sources
- Effect of aromatic plant volatiles on Pieris rapae oviposition -- Journal of Chemical Ecology (2009)
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