Here's how to grow chrysanthemums as either annuals or perennials, plus how much water and sun they need. Mums bloom in the fall, and there are multiple cultivars to select from with flower colors that include copper, yellow, orange, white and lavender. They do not like to have damp roots during the winter. Give them about 1 cup of water per month. Frost Igloo (pure white) First, hardy mums need to be planted in the spring or early summer in order for their roots to become well established by fall and able to withstand the rigors of our zone 4 winters. Using a sharp, disinfected knife, cut to divide and separate the plants. Local nurseries and garden centers will most often feature the varieties that are specific to local areas. Pinch them back several times before the 4th of July to maintain a shorter, more compact habit. To encourage blooms and a bushier shape, pinch back the branches of your mums when they grow to about 6 inches tall. The majority of mum varieties are winter hardy in Zones 5 through 9. Pinch stems back as needed from late spring to mid-summer (e.g., Memorial Day to the 4th of July) to control height and to encourage bushy vegetative growth. Pinch them back again when they reach 1 foot tall. Leaf spot causes spots on the leaves that then wither and die. Each bloom is made of hundreds of tiny flowers called florets. The flowers and leaves of mums contain several toxic compounds that irritate your skin. Chrysanthemum morifolium Mammoth Series (developed at the U of Minn.) Coral, Dark Bronze, Dark Pink, Lavender, Red, Twilight Pink, White & Yellow Quill How do I take care of mums in the garden or containers? Rosy Igloo (rosy red). Rhumba (coral red) They bloom very late in the season, usually around the end of September. The Chrysanthemum is a member of the Asteraceae (Compositae) family, related to dahlias, sunflowers, marigolds, zinnias, and cosmos. She is an outdoor lover who spends her weekends tending her raised garden and small orchard of fruit trees. For the sake of family unity, we continue to keep them listed under the more familiar name, chrysanthemum. It blooms in September, or even earlier if you neglect to prune and pinch them as outlined below. The problem isn't that the plant isn't hardy enough, because if it is labeled as a 'hardy' or 'garden' mum, it probably is perfectly hardy. Mums are tough plants when they in their 'happy place', so give them what they want, and be rewarded with those beautiful blooms for many years to come. Homecoming Chrysanthemum is a Football Style Chrysanthemum. Dendranthema Autumn Crescendo Series (all about 18"-24"h) includes: Dig up the entire clump before dividing. The oil in the leaves can cause contact dermatitis and severe skin irritation with symptoms including redness, blisters and scaling. It blooms in September, or even earlier if you neglect to prune and pinch them as outlined below. MARILYN is a clump-forming, fall-blooming … It blooms in September, or even earlier if you neglect to prune and pinch them as outlined below. 1 ½-2 ft × 2 ft (45–60 cm × 45–60 cm). Grows in zones 5 to … How do I take care of mums in the garden or containers? Dendranthema x Clara Curtis (clear pink single, 24"-36"h) Wear gloves when handling mums and keep your pets, including cats, dogs and horses, away from the plants. Chrysanthemum flowers (Chrysanthemum morifolium), or garden mums, are easy perennials to add to your garden or grow in pots in U.S. Department of Agriculture plant hardiness zones 5 to 9. U.S. Plant Patent #7905 issued July 7, 1992. If you're like most folks you buy 'hardy' mums in the fall, use them for decorating with pumpkins, hay bales and cornstalks and then, because you can't stand to throw away a perfectly good plant, and it's supposed to be hardy, you plant it. Winter hardiness can vary considerably from year to year and from location to location within the same hardiness zone. Maureen Malone has been a professional writer since 2010 She is located in Tucson, Arizona where she enjoys hiking, horseback riding and martial arts. Dendranthema Igloo Series (all about 18"-20"h, most are double flowered) Mulch the plants to help keep the soil moist and control weeds in the garden. Mums spread quickly, so you can divide them every three to five years. Football Mum Homecoming begin as a burnished salmon then turn to a soft peach. Notwithstanding the preceding culture recommendations, garden mums are frequently purchased in pots in late summer each year and grown as fall flowering annuals to supplement or replace summer annuals, rather than as permanent additions to the garden. Divide as needed (usually every 2-3 years) in spring or fall. Mums are generally easy to grow and care for, but some diseases and pests may infect your plants. Do this in the spring when the plant shoots are approximately 1 to 3 inches tall, advises PennState Extension.