Growing mums is one of my favorite ways to keep color in the garden as summer winds down. Chrysanthemums can fill a bed with yellow, burgundy, orange, pink or cream blooms just when many other flowers are fading. I have grown them in garden beds and containers, and I love how different flower shapes and colors look together in the fall.
But there is a difference between enjoying a potted mum for a few weeks and establishing a plant that returns the following year. The type of mum you buy, when you plant it, how well its roots drain and the care you give it before winter all matter. A beautiful flowering mum purchased late in fall may not have enough time to establish roots before the ground freezes, even if it is labeled hardy.
In this guide, I will walk you through choosing and planting garden mums, keeping them watered, pinching them for bushier growth, rooting cuttings, dividing established clumps and protecting their crowns through winter. The goal is not just a colorful porch this autumn, but healthy plants with a better chance of blooming again next year.
Grow Mums With Many Colors And Blossom Styles!
Chrysanthemums come in an extraordinary range of colors and flower forms, from small daisy-like blooms to densely petaled cushions. I especially enjoy mixing golden-yellow mums with deep red or burgundy flowers because the contrast brings a fading fall garden to life. Pink, lavender, bronze and cream varieties give you still more choices for containers and perennial beds.
Some chrysanthemums are hardy perennials that can return from their roots each spring; others, particularly florist types, are best enjoyed as seasonal displays. The plant label and your growing conditions matter more than the color of the flowers. For the best chance of a lasting garden planting, choose a hardy variety and plant early enough for the roots to establish before winter.
There is nothing wrong with enjoying a blooming pot on the porch, either. Mums are excellent for container gardening, and mixing early-, mid- and late-season varieties can extend the display. Just remember that a mum grown for a few weeks of fall color and one intended to survive outdoors year after year may need different treatment.
Mums Are Easy To Care For
Mums are relatively straightforward to care for once you understand their basic needs: plenty of sunlight, soil that drains freely and steady moisture while they grow. They are not immune to insects or disease, though. Crowded foliage, poor airflow and prolonged wet conditions can encourage leaf spots, mildew or root problems, so it pays to keep an eye on the plants rather than assuming they are trouble-free.
Cool fall days often help the blooms look their best, and many mums tolerate light frost without immediate damage. A hard freeze can damage open flowers and eventually send garden plants into dormancy. I have written more about how I use frost to my advantage in the garden, but the important distinction here is that frost tolerance in the flowers does not guarantee the roots will survive winter.
For a beginner, I recommend starting with a sunny planting spot and a hardy variety suited to the local climate. Keep the root ball evenly moist but not soggy, and make sure excess water can drain from containers. Once the plants are established, regular pinching during early growth encourages a fuller shape; later in the season, let the buds develop so the plant can bloom on schedule.
Site Selection To Grow Mums
Mums grow best in a sunny location with good air circulation and soil that drains well. Aim for at least six hours of direct sunlight daily. A plant in partial shade may survive, but it often grows taller, produces fewer flowers and takes longer to dry after rain. Think about how the bed looks in autumn, too. Chrysanthemums can brighten a fading perennial border and look especially good alongside asters, sedums and ornamental grasses.
Before planting, check the drainage rather than assuming that a sunny spot is suitable. If water sits in the area after a rain, improve the bed with organic matter and consider planting in a raised bed. In heavy clay, compost helps improve soil structure over time; mixing a little sand into clay is not a reliable fix and can make matters worse. Leave enough space between plants for their mature width so foliage can dry and air can move through the clumps.
Planting Tips For Growing Mums
For the best chance of winter survival, plant hardy garden mums in spring or early summer. That gives them an entire growing season to establish roots. Mums purchased in full bloom during autumn can still be planted, but they are spending energy on flowers while the soil is cooling. Even a hardy variety may fail to return if it goes into winter with a small root system. Florist mums sold for indoor displays are not necessarily hardy outdoors, so check the plant label before treating one as a perennial.
Prepare a planting hole about as deep as the root ball and wider than the container. Loosen the surrounding soil, work in finished compost where needed, and set the crown at the same level it grew in the pot. Do not bury the stems or crown. Backfill gently and water thoroughly so the soil settles around the roots. If water stands in the planting hole for a long time, address the drainage or choose a different location before planting.
Spread about two inches of organic mulch around the plant to conserve moisture and suppress weeds, keeping it away from the crown. If you are growing mums in containers, use a pot with drainage holes and a quality potting mix rather than garden soil. Container-grown plants need closer attention because their roots can dry out or freeze more quickly than roots in the ground.
Watering Mums
Consistent moisture makes a noticeable difference in the size and quality of mum blooms, especially when buds are forming. Water deeply enough to moisten the root zone, then let the upper soil begin to dry before watering again. Avoid giving the plants frequent little sprinkles that wet the surface without reaching the roots. Check the soil with your finger rather than following a rigid schedule: temperature, rainfall, wind, pot size and drainage all affect how quickly a mum needs water.
For garden-grown mums, direct water toward the base of the plant and avoid soaking the foliage late in the day. Potted mums may need checking every day during warm or windy weather. Water until excess drains from the bottom, and never leave a pot standing in water. A light layer of mulch helps slow evaporation, but it cannot make up for a pot that has dried completely or soil that stays waterlogged.
Keep watering as needed into autumn while the soil remains workable, especially during dry spells. Well-hydrated plants are better prepared for winter than plants that have been stressed by drought, although excess moisture around the crown can lead to rot.
Summer Care For Mums
Spring and early summer are when I shape my garden mums for fall. As soon as the new stems have about three sets of leaves, I pinch off the tender top set. I repeat this roughly every two weeks until mid-July, then stop so the plants have time to set flower buds and bloom in autumn. This is the routine I have used to encourage rounded, branching plants instead of tall, floppy stems.
Pinching simply removes the growing tip with your fingers or clean pruners. The plant responds by producing side shoots, creating more stems and a fuller display. The exact stopping date varies with the variety and climate, and late-flowering cultivars may need an earlier cutoff, so watch how your plants develop. You do not need to pinch a fully budded mum purchased in fall; removing its growing tips then would remove flowers you are waiting to enjoy.
Keep the soil evenly moist during hot weather and feed established plants according to soil fertility and the fertilizer label, avoiding excessive nitrogen late in the season. Removing faded flowers can tidy the display and sometimes lets remaining buds show better, but it will not reliably make a finished fall mum bloom all over again. For more on the technique, see my guide to deadheading flowering plants.
Propagating Mums From Pinching
Those tender shoot tips you remove while pinching mums do not have to go straight into the compost. Healthy nonflowering tips can be rooted as cuttings, which is a useful way to multiply a favorite garden variety. Take them in spring or early summer while the stems are actively growing, before flower buds form. Avoid weak, diseased or woody shoots.
Cut a tip about two to three inches long, remove the lowest leaves and leave a couple of healthy leaves near the top. Fill a small pot with a moist, free-draining propagation mix, make a hole with a pencil and insert the stem so at least one leaf node is below the surface. Firm the mix gently around it. Rooting hormone is optional, but clean tools and a clean growing medium help reduce rot.
Place the pot in bright, indirect light and keep humidity high with a clear cover that does not rest on the leaves. Vent it regularly, and keep the medium damp rather than waterlogged. Roots may develop in roughly two to three weeks under favorable conditions, though timing varies. When the cutting has new growth and an established root system, gradually remove the cover and pot it on. Small late-summer cuttings may need extra protection during their first winter, so earlier propagation gives them a better start.
Winter Care For Mums
Whether a mum survives winter depends on more than the temperature printed on its label. Start with a genuinely hardy garden variety, give it time to establish roots and make sure the planting site drains well. Mums have relatively shallow roots, and repeated freezing and thawing can push a poorly rooted plant upward, exposing its crown and roots to cold, drying air. That is one reason newly planted fall mums often disappear by spring.
After the ground begins to freeze, add a loose layer of straw, shredded leaves or another breathable mulch to help keep soil temperatures more stable. Avoid piling wet mulch directly against the crown. In spring, pull back excess mulch gradually as growth begins. I prefer not to cut established garden mums back hard in late autumn; leaving stems until spring can help mark their location and hold some insulating material in place.
Container mums need a different plan because the pot exposes roots to colder temperatures than they would experience in the ground. Move dormant potted mums to a protected, unheated place that stays cold but avoids severe freezing, if one is available. Check the soil occasionally and add a little water when needed so it does not become completely dry. A warm indoor room is not a good substitute for cool winter dormancy. Even with good care, some late-season purchases will not return, so consider them seasonal color unless they establish successfully.
Dividing Mums
Spring is the best time to divide established garden mums, just as fresh shoots begin to appear. If a clump has become crowded or the center is thin and woody, dividing it gives the healthy outer growth room to develop and provides new plants for another bed. Water the plant the day before if the soil is dry, then dig around the clump with a garden fork or shovel, lifting as many roots as possible.
Separate the clump into two or three pieces, or more if it is large, making sure every division has healthy shoots and roots. Remove dead material from the center and replant the divisions promptly at their original depth in prepared, well-drained soil. Water thoroughly and keep the soil evenly moist while the roots become established. Once the new shoots grow, you can begin pinching their tips to encourage the full, rounded plants that look so attractive in autumn.
Creative Ways to Display Mums
One of my favorite things about mums is how easily they bring a fall garden together. Grouping pots of different colors near a doorway or along a walkway makes an immediate display, while a mass of one color can create a stronger effect in a border. Burgundy, gold and orange look beautiful with pumpkins and weathered wood; pink or lavender mums soften a planting alongside ornamental grasses and silvery foliage.
For a porch display, arrange containers at different heights using a sturdy plant stand, crate or low step, keeping every pot accessible for watering. A decorative basket or pumpkin can disguise a nursery pot, but the mum still needs drainage and should not sit in collected water. In garden beds, tuck hardy mums among asters, sedums and late-season perennials where they will receive adequate sunlight and have room to grow next year.
These flowers are versatile enough for cottage gardens, simple entryways and more elaborate autumn arrangements. The best display is one you can maintain: check the pots regularly, remove badly faded blooms if needed, and choose a permanent planting spot early enough for the roots to settle before winter.
Frequently Asked Questions About Growing Mums
Q: Are chrysanthemums (mums) perennials or annuals?
A: Many mums are perennials, but not all. Hardy garden mums can return year after year with proper planting and winter care, while florist mums are often treated as annuals.
Q: When is the best time to plant mums?
A: Spring or early summer is best because it allows roots to establish before winter. Fall mums can be planted too, but they may not survive harsh winters.
Q: How much sun do mums need?
A: At least six hours of full sun daily. Less light means weaker, leggier growth and fewer blooms.
Q: What soil do mums prefer?
A: Well-drained, compost-amended soil. Heavy clay should be loosened or raised beds used to prevent root rot.
Q: How often should I water mums?
A: Keep soil evenly moist. Potted mums dry out quickly and often need daily watering, while in-ground mums usually need water 2–3 times weekly.
Q: Do mums need fertilizer?
A: Yes, feed every 4 to 6 weeks in spring and summer with a balanced fertilizer. Stop feeding in late summer to avoid soft growth before frost.
Q: What is pinching, and why is it important?
A: Pinching is removing the top set of leaves to encourage branching. Do this every 2 to 3 weeks until mid-July for fuller plants and more flowers.
Q: How long do mums bloom?
A: Most bloom for 4 to 8 weeks, depending on variety. Plant early, mid-season, and late bloomers to extend the display.
Q: How can I help mums survive winter?
A: Mulch heavily after the ground freezes, water them well in fall, and consider covering with evergreen boughs to prevent frost heave.
Q: Can mums grow from seed or cuttings?
A: Yes, but mums from seed vary in appearance. For consistent results, divide established plants or root cuttings in spring.
Q: Why are my mums floppy or bare at the base?
A: Usually because they weren’t pinched back in summer, or they’ve become overcrowded. Divide in spring and pinch consistently for bushier growth.
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