The following is a list of 25 perennial herbs that can be grown in your garden, their uses, and how they can be propagated. Giving herbs the right growing conditions helps to ensure they have the best flavour. Rosemary reminds me of a christmas tree. Most of them go dormant over the winter months, to come back again in spring. Perennial herbs are among the most popular herbs for herb gardeners since they grow for several years, giving you a continuous harvest for your kitchen.