If you raise butterflies that hatch in late afternoon, it’s better to keep them overnight so their wings can properly dry. You can use potted milkweed plants or cuttings for monarch butterfly beds. They will rest comfortably all night hanging from milkweed pods.
Asclepias incarnata (swamp milkweed) and Asclepias curassavica (tropical milkweed) are two milkweed species that work well for this:
Have you ever had to keep monarch butterflies overnight? Where did yours sleep? Please post comments below.