Ignalina Nuclear Power Plant in Visaginas Gaura, also known as butterfly plant , is a beautiful perennial with lots of thin flower covered stems. They flower over many months, from spring to autumn. As their common name suggests, they're Dont grow wasabi for the root!, While the root (technically a rhizome) may be the most famous part of a wasabi plant, it can take two years to grow. However, the leaves and flowers have a wasabi like Plant Parenting: Easy Ways to Make More Houseplants, Vegetables, and Flowers: Halleck, Leslie F.: 9781604698725: Amazon.com: Books