What temperature is too hot for mums?

Mums, especially early season varieties, are sensitive to high temperatures during flower initiation. This phenomenon is known as “heat delay.” When short days are provided to initiate flowers, heat delay occurs when temperatures exceed approximately 85 degrees Fahrenheit.
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What temperatures can mums tolerate?

Different Types of Mums

Given that plants in Zone 5 can withstand temperatures to -20 degrees Fahrenheit (and plants in Zone 3 can survive temperatures of -40 to -30 degrees Fahrenheit), these mums' frost tolerance is pretty high.
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Can mums survive 90 degree weather?

Mums prefer cooler temperatures, which can be a problem if you buy them when they're first available and it's still getting to 90°F during the day. In the heat, all the flowers will fade in only a couple of weeks so you'll have to replace them faster if you want to keep up the colorful show through the season.
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Is 80 too hot for mums?

Indoor Mums Option

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 long do potted mums last 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.
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What Temperatures Do Mums Withstand?



How often should I water potted mums?

Don't let your mums get too dry or wilt between waterings. Water your potted mums at least every other day. They like to get about 1 inch of water per week. Water at the soil level (the base of the plant) and not on top of the foliage.
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How do you keep potted mums alive outside?

Although mums planted in a spring garden need 6 hours of sunlight, fall potted mums need bright but indirect light. Place them a few feet back from a south-facing window or anywhere in a bright location without direct sun. Keep the mums' soil continually moist, but not soggy, by checking it daily with your finger.
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Are mums OK in the sun?

How Much Sunlight Do Mums Require? Chrysanthemums are sun-loving plants. Although they technically require only 6 hours of sunlight each day, the more light they receive, the better their growth, bloom and hardiness. Slight shade in hot, summer afternoons is appropriate in warmer gardening zones to prevent scorching.
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How do you protect flowers from extreme heat?

How to Protect Your Garden during a Heat Wave
  1. Apply mulch, preferably a reflective mulch such as dry grass clippings. ...
  2. Water your garden and shrubs early in the morning. ...
  3. Use shade cloth or protective row covers. ...
  4. Locate new transplants within the cover of taller neighbors. ...
  5. Keep lawns at least three inches tall.
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Is 80 degrees too hot in a house?

Best House Temperature While Away: 55–80 degrees

In general, it's safe to increase indoor temperature up to 80 degrees in summer and decrease indoor air temperature to 55 degrees in winter, but there are exceptions - for example, if you live with a baby or an elderly or immune-compromised individual.
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Should I bring my mums inside?

You can leave your garden mums in the ground during winter, especially with a layer of mulch in the cooler zones. However, because potted plants are more susceptible to cold damage, bring your mums indoors for winter safekeeping.
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When should I cover mums?

Most garden mums should be able to endure a light fall frost. Cover the plants at night when freeze warnings are in effect. To keep the plant attractive and healthy, snip off any dead blossoms as soon as they wilt.
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Can you leave mums outside?

Once your mums stop blooming, you can place them in the ground outdoors once the weather starts to warm. Mums will only bloom once inside but keeping it green until you transplant it outdoors will allow you to enjoy it next season.
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Do I need to cover mums at night?

You may wish to cover your mums in cases of killing frost, but for the most part, covering mums in the evening is a way to ensure they flower earlier. Mums are photoperiodic, which means that they need long nights to trigger the development of flowers.
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How hot is too hot for plants?

The general answer is around 90 degrees F, with some exceptions to the rule. This means that when temps rise above 90 and remain there for a lengthy spell: Leaves wilt. Water evaporates into the atmosphere more quickly in high heat, draining a plant's reserves.
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How do you keep plants alive in extreme heat?

How to keep plants alive in this blistering summer heat
  1. Water deep. Advertisement. ...
  2. But don't overwater. Advertisement. ...
  3. No water in the sun. ...
  4. Set up some shade. ...
  5. Don't remove damaged foliage. ...
  6. Stop all pruning until fall. ...
  7. Forget the fertilizer. ...
  8. Tomatoes etc.
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Should I water my plants in extreme heat?

When it's unusually hot, your plants will be extra thirsty, so don't skip watering during a heat wave! Because extreme temperatures can impair plants' ability to take up water via their roots, it's also important to give them a helping hand by watering deeply.
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How do you take care of mums in the summer?

Because summer temperatures are known to dry out plants, check your mums' moisture levels daily. You'll likely need to water thoroughly in the hot, dry spells. You might also need to water deeply once a week in the summer.
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Do mums need a lot of water?

Chrysanthemums love full sun, and all that heat means they also need plenty of water. Give them a good soak after repotting, then water every other day or whenever the soil seems dry. Try to avoid allowing your plants to wilt.
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Do mums come back in pots?

You will have some buds on them by then, but don't worry. 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.
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How do you keep mums blooming all fall?

  1. Water—but don't overwater—your mums according to their growth cycle. ...
  2. Fertilize your mums in the spring and summer. ...
  3. Mulch matters. ...
  4. Pinch your mums, please. ...
  5. Cut back old stems. ...
  6. Don't forget to deadhead.
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Why are my mums leaves turning yellow?

Yellowing Chrysanthemum Leaves – Poor Drainage

Garden mums that are planted in heavy soil or soil that drains poorly are not happy plants. The plants need well-draining soil to thrive. If the soil doesn't release water, the mum's roots drown and you see your chrysanthemum plant yellowing.
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Why are my mums drooping?

You might be surprised. Water, but not too much – Mums do not like to get dry. When their leaves are drooping, which can happen ridiculously quickly, they are way too dry. Try to water before they get to that state.
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