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- Keep mums outdoors until the foliage and flowers die back after the first frost.
- Move the plant indoors to a dark area that is between 32 and 50 degrees Fahrenheit.
- Water mums so the soil is slightly moist during winter dormancy.
- Keep mums indoors until one week before the last expected spring frost.
Also, how do you prepare mums for winter?
Prepare mums for winter after the first hard frost. Mulch up to 4 inches with straw or shredded hardwood. Fill in around the entire plant, spreading well between branches. Pinch off dead blooms to clean up the plant, but leave branches intact.
Also asked, do mums come back year after year?
Mums are considered tender perennials. Whether they come back the next year depends on when and where they are planted: Spring or summer – If planted in spring or summer, mums will have ample time to establish a good root system. If this is the case, enjoy your mums as annuals.
Cold Temperatures In general, mums are hardy in U.S. Department of Agriculture plant hardiness zones 5 through 9, although this can vary slightly by species. According to the USDA map, the lowest minimum temperatures mums can survive are right around 20 degrees below zero Fahrenheit.