As the transition from summer to fall begins in September, gardeners are increasingly focusing on chrysanthemums, a signature flower of the season. While the familiar "cushion" mums are widely available and popular, there is a broad range of chrysanthemum varieties that offer gardeners opportunities to diversify their autumn landscapes.
Chrysanthemums belong to a large and diverse plant family, with about 40 known species of wild chrysanthemums and hundreds of thousands of cultivated varieties developed over centuries. To manage this diversity, the National Chrysanthemum Society classifies these plants into 13 categories based on flower form, though many of the more delicate types are typically unsuitable for outdoor gardens due to specific care requirements.
For home gardeners, several hardy and visually striking varieties are readily accessible. Most chrysanthemums sold as perennials, particularly cushion mums, can survive and return year after year if planted early enough for the roots to establish before the onset of frost. These cushion mums are known for their compact, mounding foliage and small, double flowers that bloom in an array of colors including white, yellow, lavender, pink, purple, red, orange, bronze, and rust. Their blooming period generally starts in late summer or early fall, lasting four to six weeks. They are hardy in USDA Zones 5 through 9, with some cultivars capable of enduring colder winters down to Zones 3 or 4.
Gardeners should exercise caution when purchasing chrysanthemum plants at supermarkets or chain stores, as many florist mums are designed only for short-term fall decoration and lack the hardiness to survive multiple seasons. Plant tags should be checked carefully to confirm suitability for long-term outdoor growth in the local horticultural zone.
Other notable chrysanthemums include Fuji, or spider mums, which are less commonly found in retail garden centers but can often be sourced through specialty nurseries or catalogs. These plants feature elongated, tube-like petals with curled ends resembling spider legs and bloom in mid- to late-fall, often starting in early November. Hardy down to Zone 5, spider mums have a flowering period extending four to eight weeks, offering gardeners prolonged seasonal interest.
Another prominent variety is the Homecoming, or Football, mum, renowned for its large, densely packed flowers with inward-curving petals. Popularized in the early 20th century for college homecoming events, these mums can thrive as perennials in Zones 5 to 9 and are typically available through specialized nurseries or mail-order outlets.
By selecting from these and other varieties, gardeners can enhance their fall gardens with chrysanthemums that provide diverse forms, colors, and extended blooming periods suited to their climate zones.