Readers ask: How cold can mums tolerate?

Can potted mums withstand frost?

Mums do not respond well to frosts and freezes, which may not occur until December or January in warmer areas. Garden or hardy perennial mums usually will weather the storm and leaf back out the following spring, but pot mums are generally finished.

Do mums need to be covered for frost?

Most garden mums should be able to endure a light fall frost. Cover the plants at night when freeze warnings are in effect. However, if you are in a cold climate, leaving the dead foliage on the plants has been found to help the plant survive colder temperatures better than pruned plants.

Can mums stay outside in the cold?

Hardy flowers like pansies and mums should have little problem adjusting to the cold, though some open flowers may droop until your plants have gotten accustomed to the lower temperatures. Cool temperatures actually intensify the colors of flowering cabbage and kale.

How long can mums stay outside?

Garden mums may be grown in containers, or planted in beds with existing shrubs and flowers. Flowers generally last about two or three weeks, depending on the outdoor temperatures and how far along the blooming process was when the plants were purchased.

At what temperature should I bring my mums inside?

Indoor Mums Option

Potted chrysanthemums can be brought indoors when frost threatens, if you place them where they receive full sun or supplemental light. Keep the temperature between 70 and 75 F during the day and 60 F at night, according to the University of Missouri.

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How do I save my potted mums for next year?

Cut mums back to within a few inches of the soil line before bringing indoors. Before bringing indoors, cut the mum back a few inches above the potted soil line. Next, for best success, store in a cool corner of the basement or a semi-heated garage. The goal is to allow them to go dormant without freezing.

Will mums come back every year?

They will grow back and your plant won’t look dead in the middle.” Many people buy mums in the fall thinking the plants are annuals. These people toss the mums in the trash once the blooms have faded. But if you buy hardy mums, you can get them to bloom year after year.

Can you plant mums in the fall?

If you‘re using a mum as a perennial, plant in early spring, or in the fall at least six weeks before the first killing frost. If you‘re using chrysanthemums for a pop of fall color to boost your late season garden, plant them when they’re blooming in later summer or early fall and treat them as annuals.

When should I buy fall mums?

{two} Mums are a cool season fall flowering perennial so the best time to purchase them is mid-September when the temperatures start to drop. Many growers force the plants to grow early so they look pretty displayed in the big box stores.

Can fall mums handle frost?

Enter the hardiest garden mums, bred in Alberta and Minnesota and able to tolerate a zone 3-4 climate. They are the showiest things you will have in your autumn garden as they bloom non-stop from August to October.

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Should you plant mums in the ground?

The best time to plant mums is in the spring because this gives the roots time to establish themselves. Mums can be added to gardens later on in the year, but the flowers will become more established if given adequate time to grow before the fall.

How can I bring my mum back to life?

Newly purchased potted mums need to be kept consistently moist but not wet and in bright, indirect light indoors. They need at least five hours of full sun outdoors to stay healthy enough to successfully come back the next season.

What is the lowest temperature mums can tolerate?

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.

Why are my mums dying?

The flowers may wilt and die quite suddenly. Mealybugs and aphids are two that do this, while chrysanthemum thrips attack the buds and flowers. Finally, poor environmental conditions such as overly wet or dry soil weaken the mums, which can lead to the plants becoming more susceptible to fungi, diseases and insects.

How often should I water mums in the fall?

Plants likely won’t survive well. Water newly planted mums thoroughly, and never let them wilt. After they are established, give mums about an inch of water per week. When bottom leaves look limp or start to turn brown, water more often.

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