This is why you should plant milkweed.
The story of three new monarch butterflies, August 2014:
First, swamp milkweed
Then four monarch caterpillars
A few weeks later, vibrant colored monarchs
Next I discovered three empty chrysalis hanging on goldenrod !
Yahoo, the caterpillars had evolved into beautiful monarch butterflies!
http://www.startribune.com/opinion/commentaries/280114542.html
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