Butterfly Milkweed - Knowledgebase Question

Port Orange, Fl
Question by dlavw1730
August 30, 2009
My milkweeds were planted 2 months ago and are already over 6ft tall. Plant guide stated 2-3ft. Can these be pruned and not damage the plant? If so when? If not please advise as to future care. Thank you


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Answer from NGA
August 30, 2009

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Butterfly Milkweed (Asclepias tuberosa interior) typically grows only about 3' tall so I'm not sure what's up with yours! Pruning and pinching back milkweed is fine and does promote a bushier plant with more tender leaves that attract laying female butterflies. But don't overdo it if you want flowers and, eventually, fertile seed pods. Most milkweeds have a flowering period, and if you pinch off the budding tips they may not flower well or will flower too late to form viable seed. Pinching once early in the season and a second time above the flower stalks might be a good compromise and should keep your plant smaller next year, but this year you may have to sacrifice some flowering to reduce the size of your plant. Best wishes with your butterfly milkweed!

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