How to Feed a Butterfly (feeding monarch butterflies feed monarch butterfly)

If you are raising Monarch butterflies, you sometimes have to feed them before you release them. If the weather is nice, they can just fly off and find some flowers but if it's cold or rainy, you might want to keep them inside for a few days until the weather clears, and if so you'll need to feed them before you release them. Turns out it's easy to do -- they LOVE watermelon.