Chrysanthemums, also known as mums, are indeed perennials. This means that they have the ability to live for multiple years, regrowing and blooming each year. Unlike annual plants, which complete their life cycle within a single year, perennials have the ability to survive winter and continue growing in subsequent seasons.
Garden chrysanthemums, specifically, are known for their hardiness in horticultural zones 5-9. These zones are determined by the average minimum winter temperatures experienced in different regions. In the United States, these zones cover a large portion of the country, including areas in the Midwest, Northeast, Southeast, and parts of the West Coast.
However, it is important to note that chrysanthemums do have their limits when it comes to cold temperatures. While they can withstand mild to moderate frosts, they are not able to survive the deep freezes experienced in certain regions. In areas such as New England and the northern and central portions of the Northwest and West, where winter temperatures can drop extremely low, chrysanthemums may struggle to survive.
To give you a better understanding, let me share a personal experience. I live in a horticultural zone 6, which means that chrysanthemums can generally survive the winters here. I have a beautiful chrysanthemum plant in my garden that comes back year after year. However, I have noticed that during particularly harsh winters with prolonged periods of freezing temperatures, the plant may suffer some damage or even die back completely.
In regions where chrysanthemums are not winter hardy, they are often treated as annuals or grown as potted plants that can be brought indoors during the colder months. This allows gardeners in colder climates to still enjoy the vibrant blooms of chrysanthemums without worrying about winter survival.
Chrysanthemums are perennials that can survive winter in horticultural zones 5-9. While they are hardy in many parts of the United States, they cannot withstand the deep freezes experienced in certain regions. It is important to consider the specific climate and winter temperatures of your area before planting chrysanthemums in your garden.
