Companion Planting & Garden Value: Yarrow
Achillea millefolium
Spacing: 1 per square foot. Mature height: 2-3 ft.
Pollinator & wildlife value
NC State Extension's plant toolbox lists it specifically under "Attracts: Bees, Butterflies, Pollinators, Predatory Insects": the flat-topped umbel clusters are a classic beneficial-insect draw (ladybugs, lacewings, parasitic wasps) used for pest control in vegetable beds, not just a generic pollinator plant. (source)
Plant these nearby
No well-established companions.
Keep these apart
Nothing it needs to be kept away from.
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Companion planting for Yarrow: which plants to grow next to it, which to keep apart, and the reason behind each pairing.
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