Companion Planting & Garden Value: Butterfly Weed (Asclepias)
Asclepias tuberosa
Spacing: 1 per square foot. Mature height: 1.5-3 ft.
Pollinator & wildlife value
A milkweed species and confirmed host plant for monarch butterfly caterpillars: extension sources rank it as an equally good monarch food source as common milkweed (Asclepias syriaca), and recommend it for urban/garden plantings specifically because it's showier and doesn't spread by rhizomes the way common milkweed does. (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 Butterfly Weed (Asclepias): which plants to grow next to it, which to keep apart, and the reason behind each pairing.
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