Signs of autumn are most apparent in colder climates, where fall foliage sets the landscape ablaze. But regardless of your location, chances are there’s one familiar seasonal sight each year: potted chrysanthemums perched on porches, hanging in baskets, temporarily planted into borders.
And soon, they get kicked to the curb with decaying jack-o’-lanterns.
Curious and frankly disturbed about the ritual carnage, I asked a few of my Long Island, N.Y., neighbors why they discard their mums. The universal response? They believed them to be annuals.
Garden chrysanthemums are actually perennials, hardy in horticultural zones 5-9. That means they can survive winter in roughly half of U.S. states. It’s true, the plants can’t withstand the deep freezes experienced in parts of New England and the northern and central portions of the Northwest and West. Nor can they handle the blazing summer heat in the southern half of Florida, south Texas, and part of Southern California into western Arizona.
But that leaves roughly half the country primed for growing mums in their gardens.
There are, indeed, annual chrysanthemums, but they are primarily used in the florist trade or sold as potted gift plants, typically in stores like supermarkets, as opposed to nurseries. Still, check the plant tag to know what you’re getting. The garden-variety perennials will be labeled chrysanthemum morifolium; annuals belong to the chrysanthemum multicaule species.