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Why are monarch butterflies attracted to particular flowers but not others?

Biology Asked on December 19, 2021

I have a "Purple Emperor Butterfly Bush" (Buddleia davidii ‘Purple Emperor’) and sure enough it does attract butterflies.

I have seen monarch butterflies using it, which confuses me, because I thought that monarch butterflies only fed from milkweed.

What makes this type of bush a substitute for the milk weed, but not other flowers?

One Answer

It's the Monarch caterpillars that only feed on milkweed. Adult Monarchs, like many butterflies, feed on the nectar from flowers. https://www.fs.fed.us/wildflowers/pollinators/Monarch_Butterfly/habitat/index.shtml

Answered by jamesqf on December 19, 2021

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