How do I make butterfly nectar? Arah February 03, 2021 20:04 Updated To make nectar for your butterflies, thoroughly mix 2 teaspoons of sugar with 1/4 cup water and dissolve thoroughly. Related articles When will my butterflies start eating? Why should I put a paper towel under the habitat? What kind of fruit can my butterflies eat? Will my butterflies lay eggs? What do butterflies eat? Comments 0 comments Please sign in to leave a comment.