Biennial Posted on September 13, 2016November 10, 2022 by PlumeriaDB ALL0-9ABCDEFGHIJKLMNOPQRSTUVWXYZ Share This Tweet Share Plants that take two years, or a part of two years, to complete their life cycle. Related Images:Related Articles: Gibberellic acid in plantsGibberellic acid (GA), a plumeria hormone stimulating plant growth and development, is a tetracyclic di-terpenoid compound...Learn More