An Introduction to Rain Gardens Presenter: Alexandra Cantwell, from the Norfolk Botanical Garden, will give a presentation on Introduction to Rain Gardens. Program Description: This presentation explores the basics of starting a rain garden, what it is, and why it’s so important! From plant selection to design, this program lays the foundation for a better understanding of these small but mighty sustainable gardens. Alexandra Cantwell graduated from Virginia Tech with a double major in environmental horticulture, landscape design, and contracting....