Add more host plants to the garden for the best butterfly habitat and lifecycle support! Butterflies (and moths) lay their eggs on preferred plants, and the caterpillars that follow feed on the host plant during their development. The link between Monarchs and milkweed plants is well known, but there are many other butterflies that have similar relationships with other native plants. While most butterflies are not as exclusive as the Monarch when it comes to host plants, they do have strong preferences. Each of the plants listed here has been verified on one or more scientific websites. Note: We are in the process of making sure that each description mentions the lepitoptera that use them as host plants.