Seed Needs, Pennyroyal Mint (Mentha pulegium) 1,000 Seeds Non-GMO Quality Pennyroyal Mint seeds packaged by Seed Needs. Intended for the current and the following growing season. Packets are 3.25" wide by 4.50" tall and come with a full colored illustration on the front side, as well as detailed sowing instructions on the reverse. Pennyroyal Mint, like Peppermint & Spearmint, can be invasive through vigorous growth habits. The plants grow to a mature height of roughly 12 inches tall, displaying dozens of small, green colored leaves. These plants are attractive and aromatic, giving off the Mint like scent of a spearmint plant. Pennyroyal Mint is not only a herb, but also an attractive flowering plant as well. The mauve to purple colored blooms will develop and bloom through the summer months, attracting an array of beneficial insects to the garden, such as bumblebees & honeybees. Pennyroyal Mint is categorized as a perennial flowering herb. Perennials such as this will establish a deep root system in it's initial year of growth. The plants then wilt on the surface, due to harsh frosts, later returning the following Spring season. All Pennyroyal Mint seeds sold by Seed Needs are Non-GMO based seed products and are intended for the current & the following growing season. All seeds are produced from open pollinated plants, stored in a temperature controlled facility and constantly moved out due to popularity.