T
The Daily Insight

Can mums be planted outside

Author

Mia Kelly

Published Apr 30, 2026

Garden mums are tough perennials you plant outdoors where they can live year round. Florist mums are used as indoor potted plants and won’t survive a winter if you plunk them into your garden in the Midwest. … Get a mum suited for the great outdoors from a nursery or garden center.

Can I plant my potted mums in the ground?

Technically, however, they can be planted in your garden any time before the first frost of fall. This means you can try removing the mums from your pot and planting them in the ground in the fall. … Plant them at the same depth as they were in the pot and water them thoroughly after planting.

How long do potted mums last outdoors?

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.

Do mums come back every year?

Because people often think that mums (formally called Chrysanthemums) are at best a finicky perennial, many gardeners treat them as annuals, but this doesn’t have to be the case. With just a little winter care for mums, these fall beauties can come back year after year.

Can I leave my mums outside?

Most mums are hardy outdoors in U.S. Department of Agriculture plant hardiness zones 5 through 9, although some tender varieties can’t survive outdoors in regions that experience frost. … Cut off the mums’ flowers after they wilt. Doing so encourages further blooming and keeps the plants clean.

When can I put mums outside?

The bottom line is that there’s not a “best” time to put out your potted mums, but you’ll get optimal plant performance in cooler weather. Mid- to late-September is ideal if you want to love your mums for as long as possible.

Can mums survive 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.

Are potted mums annuals or perennials?

Though technically perennials, mums are often grown as annuals owing to shallow root systems inclined to heave right out of the ground during winter’s freeze-thaw cycles.

Can I keep mums in pots over the winter?

Overwinter your mums in pots. If you’re not ready to give up your beautiful fall blooms, you can overwinter mums in pots as long as they’re hardy mums. Fall-blooming mums (​Chrysanthemum x morifolium​) grow in USDA plant hardiness zones 4 to 9, and they’re often grown in pots as annuals in other zones.

How do you care for potted mums outside?
  1. Give mums plenty of space. It’s wise to plant your mums about 18 inches from other plants so their roots have room to expand.
  2. Water, but not too much. …
  3. Deadhead. …
  4. In colder climates your mums may need to be mulched using leaves, wood chips, or straw. …
  5. If frost gets your mums, don’t fret.
Article first time published on

Do mums like sun or shade?

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.

Will potted mums bloom again?

A: They won’t flower again this year, but should next fall. You can keep them in containers or plant them in the garden in an organically enriched, well-draining soil and in five to six hours of sun. Since the blooms have faded, cut the plants back to 2 inches above ground and mulch heavily.

How do you keep fall mums looking good?

Water Mums from Bottom: Protect your mums from rain, and water them carefully without splashing the foliage or blooms. This will help keep the blooms from spotting and browning. Keep Mums Cool: Warm temperatures also encourage blooming, while cool temperatures will help mums blooms last longer.

Is too much rain bad for mums?

The problem is usually that the rain soaks the flowers and foliage and at the same time splashes fungal spores up from the surrounding soil. … The problem is that the more we water them, the more we waterlog the soil and predispose the mums to disease attack. Balancing water for planted pot mums is a full-time job!

Are mums Hardy?

The vast majority of garden mums (Chrysanthemum x morifolium) are hardy in Zones 5 to 9, although there’s a trick to getting those beautiful fall bloomers to overwinter successfully.

What do you do with mums in the spring?

  1. Prune all the dead parts down to the roots.
  2. Add a little fresh compost or fertilizer to the soil.
  3. Move the pot to the sun.
  4. Water thoroughly.
  5. Keep an eye on the plants and take extra care watering and watching for insects as the new growth establishes itself.

Do I need to 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. … Keep mums outdoors until the foliage and flowers die back after the first frost.

How long do mums last outside?

Mums that are on special with fully open flowers are OK to buy, but be aware that they will not last as long in your garden. Depending on weather conditions and mum varieties, you can expect to get a good display of color for four to six weeks. Extended periods of hot weather will age the flowers more quickly.

How cold can potted mums tolerate?

Mums are cold hardy to about 20 degrees Fahrenheit. They can survive hot temperatures from 90 to 100 F, but they’ll need plenty of water and a little shade.

What do I do with my mums after they fall?

Shortly after Fall or in late winter, when the mum has finished blooming, ensure you cut the plant’s stem to 6 to 8 inches above ground level. However, if you find the dead stems of winter valuable to wildlife or of interest, you may choose to leave the stems intact until the spring growth develops.

What can I do with hardy mums?

Many gardeners plant their hardy mums too late in the fall for them to overwinter successfully. These perennials have shallow root systems, and as the top few inches of soil freeze and thaw through winter, that expansion and contraction can actually push newly planted hardy mums out of soil.

What do hardy mums look like?

Hardy Mum Varieties Varieties include the light purple ‘Dorothy Mechen’ and ‘Adrienne Mechen’, which have flowers with a pink center that fades to bright white tips. Pom Pom: These fluffy mums are also known as button mums. All varieties produce compact blooms in various colors.

Where do mums grow outside?

Garden mums are hardy in U.S. Department of Agriculture plant hardiness zones 8 through 10a. Prepare a location with full sun and well-drained soil by digging in a 2-inch layer of compost to a depth of about a foot. Garden mums will survive in partial shade, but they won’t bloom as well and tend to sprawl.

Do mums like lots of water?

Both florist and garden mums make excellent container plants. … 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 soil seems dry. Try to avoid allowing your plants to wilt.

Do you need to deadhead mums?

Deadhead often for lasting blooms. Take off wilted blooms and dead stems/leaves not only makes your mums look more beautiful, it helps your plant to bloom longer. Once your mums stop blooming, you can place them in the ground outdoors once the weather starts to warm.

How do you keep mums blooming in the summer?

Pinch each time the mums grow to about 6 inches high, reducing the stem length to about 4 inches. Pinching encourages branching, which results in more buds — but pinching after July removes the buds and reduces bloom. After the mums start to flower, cut off the dead blooms as soon as they begin to wilt.

How often do you water 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.

How do you know if you're overwatering mums?

  1. The tip of this plant’s leaf is brown, but it feels soft and limp due to overwatering. Roots are Critical to Plant Life. …
  2. Leaves Turn Brown and Wilt. When plants have too little water, leaves turn brown and wilt. …
  3. Water Pressure Begins to Build. …
  4. Stunted Slow Growth.

Can potted plants be left in the rain?

Most house plants do best when they are on a regular wet and dry cycle allowing the soil to dry out a bit in between watering. But in general house plants can tolerate being soaked with rainwater even if the soil is already wet. … You might think your plants are dangerously waterlogged from sitting out in the rain.