We have milkweed plants at school in a garden patch that is designated as a monarch butterfly sanctuary. The plants are Asclepias curassavica, or tropical milkweed. People grow them a lot around here. I saw them in Maui, too. But I have never seen any monarchs on them.
Until yesterday:

It was a monarch! Yay! I guess they DO like tropical milkweed!
I have been planting lots of native milkweed. Last year I had many monarch caterpillars. This year I planted a bunch of seeds from last year’s plants. Hopefully they will grow. We’ve had such a crazy winter but I hope they had enough cold stratification to germinate.
How lovely! Thank your school for taking care of those beautiful creatures. Debbie, I hope your milkweed and monarchs are plentiful this year! 🙂