We suggest that you start with plants that be the Host Plants for the caterpillars. Milkweed is the most important for Monarchs while Bronze Fennel, Parsley, and Dill for Black Swallowtail. The most popular plants for providing Nectar and attract Butterflies are Fennel, Lavender, Marigolds, Oregano, Sage, Verbena, Zinnias and Penta. All these plants are available at the Garden Center. Please stop by and speak with our Design Team on ideas and other logistics for your Butterfly Garden.