mums

Don’t Throw Out Your Mums! They’re A Perennial, Not An Annual

There’s something magical about the burst of color mums bring to our gardens each fall. I absolutely adore watching their vibrant blooms brighten up the landscape as other plants begin to fade. But did you know that many people mistakenly treat these beauties as annuals, tossing them out once the season ends? It’s such a shame because, with a little care, your mums can come back year after year!

I understand how frustrating it can be to invest time and effort into plants, only to think they won’t survive the winter. That’s why I’m excited to share the good news: mums are perennials! With the right approach, you can enjoy their stunning display every autumn. Let’s dive into how you can make the most of these resilient plants.

Understanding the Perennial Nature of Mums

Chrysanthemums
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Mums, officially known as chrysanthemums, are native to Asia and northeastern Europe. They’ve been cultivated for centuries, particularly in China and Japan, where they’re cherished for their beauty and symbolism. These plants are not considered invasive, so you can plant them in your garden without worrying about them overtaking native species.

Despite their perennial nature, mums are often sold as annuals because they’re typically planted in the fall, which doesn’t give them enough time to establish strong root systems before winter. By recognizing that mums are perennials, you can change how you plant and care for them, ensuring they return year after year to grace your garden with color.

Planting Mums at the Right Time

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One of the keys to perennial success with mums is planting them in the spring or early summer. This gives them ample time to develop deep roots and become well-established before the cold weather hits. I remember the first time I planted mums in the spring—it was amazing to see how much fuller and healthier they were come fall!

If you’ve already purchased mums in the fall (and let’s face it, those blooms are hard to resist!), you can still try to overwinter them. Plant them as soon as possible and provide extra mulch for insulation. While there’s no guarantee they’ll survive, giving them a fighting chance is better than tossing them out.

Providing Ideal Growing Conditions

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Mums thrive in well-drained soil and full sun, requiring at least six hours of sunlight daily. They prefer slightly acidic to neutral soil (pH 6.5-7.0). If your garden has heavy clay soil or poor drainage, consider amending it with compost or planting mums in raised beds. It’s such a bummer when poor soil conditions hinder plant growth!

These plants are relatively low-maintenance but appreciate consistent moisture. Water them regularly, especially during dry spells, but avoid overwatering, which can lead to root rot. By providing the right environment, you’re setting your mums up for a spectacular show each year.

Pruning and Pinching for Fuller Plants

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To encourage bushier growth and more blooms, prune and pinch back your mums during the growing season. When the plants reach about six inches tall, pinch off the top inch to promote branching. Repeat this process every few weeks until early July. I love this technique because it results in lush, full plants that are absolutely covered in flowers!

Avoid pinching after mid-July, as this can delay blooming. Proper pruning not only enhances the plant’s appearance but also strengthens it, making it more resilient to pests and harsh weather.

Mulching for Winter Protection

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As winter approaches, mulch your mums generously to protect them from freezing temperatures. Apply a layer of organic mulch, such as straw or shredded leaves, about four inches deep around the base of the plant. This insulation helps regulate soil temperature and moisture levels.

I’ve found that mulching not only aids in overwintering but also improves soil health over time. Come spring, you can gently rake away excess mulch to allow new growth to emerge. It’s so rewarding to see those green shoots pop up after a long winter!

Fertilizing for Optimal Growth

rabbit manure
Rabbit Manure | Credit: Wikimedia Commons

Mums are heavy feeders and benefit from regular fertilization. Use a balanced, slow-release fertilizer in early spring when new growth appears. This provides essential nutrients for leaf and stem development. Later, switch to a fertilizer higher in phosphorus to promote blooming.

Be cautious not to over-fertilize, as this can lead to lush foliage but fewer flowers. I learned this the hard way one year when my mums were all leaves and no blooms! Following a proper fertilization schedule ensures a dazzling display come fall.

Dividing Mums to Maintain Vigorous Plants

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Every few years, it’s a good idea to divide your mums to prevent overcrowding and rejuvenate the plants. The best time to do this is in early spring. Dig up the entire plant and gently separate it into smaller sections, making sure each has roots and shoots.

Replant the divisions at the same depth, spacing them about 18 inches apart. Not only does this keep your mums healthy, but it also gives you more plants to enjoy or share with friends. It’s like getting free plants—what’s not to love?

Protecting Mums from Pests and Diseases

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While mums are generally hardy, they can fall prey to pests like aphids, spider mites, and diseases such as powdery mildew. Regularly inspect your plants for any signs of trouble. If you spot pests, treat them promptly with insecticidal soap or neem oil.

Ensure good air circulation by spacing plants appropriately and avoiding overhead watering. It’s such a relief when proactive measures keep pests at bay—nothing’s worse than watching your beautiful mums struggle!

Selecting Hardy Mum Varieties

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Not all mums are equally cold-tolerant. When purchasing, look for hardy garden mums rather than florist mums. Hardy varieties are bred to withstand colder climates and are more likely to survive the winter. Some popular hardy mums include ‘Sheffield Pink’, ‘Clara Curtis’, and ‘Mary Stoker’.

These varieties, often derived from species like Chrysanthemum x morifolium, are well-suited to garden cultivation and not invasive. Choosing the right type of mum can make all the difference in their longevity and performance in your garden.

Incorporating Mums into Your Garden Design

goldenrod
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Mums are incredibly versatile and can enhance your garden in various ways. Plant them in mixed borders, use them as edging plants, or create a mass planting for a bold statement. Their rich hues complement other fall bloomers like asters and ornamental grasses.

I love pairing mums with sedum and goldenrod for a stunning autumn display. Since they’re perennials, you can plan your garden design knowing they’ll return each year. It’s exciting to see how they contribute to the landscape over time!

Cody Medina
Small Scale Farmer
Hi there! I'm Cody, a staff writer here at The Garden Magazine and a small-scale farmer living in Oregon. I've been gardening most of my life and now live on a quarter-acre farmstead with chickens, ducks, and a big garden.