One of the joys of gardening is growing a variety of plants. Our perennial plant collections are an economical way to do that. While annual plants complete their growth cycle in one season and die, perennial plants come back year after year. That means less time spent planting. Popular perennial plant collections include peonies and iris. When choosing perennial plant collections to buy online from Dutch Gardens, make sure the perennial plants will grow in your hardiness zone. Other factors to consider are sunlight and soil requirements, mature heights and spread, bloom time (if applicable), number of plants in the collection, and the flower colors in the perennial plant collection (if applicable).