Chrysanthemum Types – Choose The Perfect Blooms For A Vibrant Fall
I know exactly how it feels when the summer heat begins to fade and your garden starts looking a little tired. You want that last, glorious burst of color to carry you through until the first frost hits the ground.
The good news is that by choosing the right plants, you can turn your backyard into a masterclass of autumn beauty. I promise to guide you through the overwhelming variety of flowers available so you can plant with confidence.
In this guide, we will explore the various chrysanthemum types, from the delicate spider varieties to the hardy garden favorites, ensuring you find the perfect match for your skill level and landscape.
Understanding the Main Chrysanthemum Types and Classes
When you walk into a garden center in September, you are usually greeted by a sea of colorful mounds. While they might all look similar at first glance, they are actually categorized into 13 distinct floral classes.
These classes are determined by the way the petals, or ray florets, grow around the center of the flower. Knowing these classes helps you decide if you want a classic daisy look or something more exotic and architectural.
The National Chrysanthemum Society has standardized these categories to help enthusiasts and competitors alike. For most of us, these chrysanthemum types offer a menu of textures and heights to play with in our flower beds.
Garden Mums vs. Exhibition Mums
Before we dive into the specific shapes, it is helpful to distinguish between “Garden Mums” and “Exhibition Mums.” This is the first decision point for any home gardener.
Garden mums are the hardy perennials you see in most landscapes. They are bred to produce hundreds of smaller blooms and usually have a mounding growth habit that requires very little support.
Exhibition mums, on the other hand, are the “show-stoppers.” These often require staking, specific disbudding techniques, and protection from the elements to produce those massive, dinner-plate-sized blooms.
The Role of Photoperiodism
Have you ever wondered why mums only bloom when the days get shorter? This process is called photoperiodism. These plants are sensitive to the amount of light they receive.
They only begin to set buds when the nights reach a certain length. This is why you should never plant them near bright streetlights or porch lights, as the artificial light can trick the plant into thinking it is still summer.
Single and Semi-Double Chrysanthemum Types for Natural Beauty
If you love the look of a classic daisy, the single and semi-double varieties are for you. These are often the most attractive to pollinators like bees and butterflies because the nectar is easy to reach.
Single mums have a central disk surrounded by one or two rows of long petals. They are incredibly charming in a cottage garden setting and provide a delicate, airy feel compared to the denser varieties.
Semi-double mums look very similar but feature more rows of petals. They still show that bright yellow center, which creates a beautiful contrast against deep red or purple petals.
Class 7: Single and Semi-Double Characteristics
These plants are generally very sturdy and hold up well during autumn rainstorms. Because they aren’t top-heavy with massive blooms, they rarely flop over in the mud.
I often recommend these to beginners because they are low-maintenance. You get a massive amount of “flower power” without having to worry about complex pruning or staking systems.
Try planting these in groups of three for a massive splash of color. They look spectacular when paired with ornamental grasses or late-blooming salvia.
Bold and Beautiful: Anemone, Spoon, and Quill Varieties
For those who want something a bit more unique, these three chrysanthemum types offer fascinating shapes that will definitely get your neighbors talking. They move away from the flat petal look into something more three-dimensional.
Anemone mums (Class 8) are easily identified by their raised, cushion-like centers. The center is made of tiny tube-like florets that create a “puffy” look, surrounded by a ring of regular flat petals.
They are elegant and sophisticated. I find they look best in containers where you can appreciate the intricate detail of the center disk up close on a patio or porch.
The Unique Look of Spoon Mums
Spoon mums (Class 9) are truly a wonder of nature. Each petal is a long tube that opens up at the very end to look like a tiny spoon. It is a very distinct, geometric look.
These varieties are quite hardy and can handle the cooler nights of October. The “spoons” often have a different color on the inside than the outside, creating a shimmering, multi-colored effect.
When selecting from these chrysanthemum types, look for varieties like “Starlet” or “Happy Face.” They bring a playful energy to the garden that standard mums just can’t match.
Quill Mums: Long and Elegant
Quill mums (Class 10) feature petals that are completely tubular, resembling a bird’s quill or a drinking straw. Unlike the spoon type, these stay closed at the tip.
They have a very straight, spiky appearance. While they look delicate, they are surprisingly resilient. However, they can be sensitive to heavy frost, so keep a frost blanket handy if you live in a colder zone.
Quills add a wonderful “vertical” texture to floral arrangements. If you enjoy cutting flowers for your dining room table, these should definitely be on your planting list this year.
Show-Stopping Pompon and Spider Mums
If you want high-impact volume, look no further than the pompon and spider classes. These are the celebrities of the fall garden, known for their dense structure and dramatic flair.
Pompon mums (Class 6) produce perfectly round, globe-shaped flowers. They are often smaller in diameter but grow in thick clusters that completely hide the green foliage of the plant.
These are the classic “button” mums. Because the blooms are so tight and compact, they are very resistant to wind and rain damage, making them a very practical choice for exposed garden beds.
The Dramatic Spider Mum
Spider mums (Class 11) are perhaps the most recognizable of the exotic types. They feature long, thin, thread-like petals that often coil or hook at the ends, resembling spider legs.
These are the crown jewels of the floral world. Because the petals are so thin and long, they are quite fragile. I recommend growing these in a sheltered spot, perhaps against a south-facing wall or in a large pot you can move indoors during a storm.
They require a bit more patience and care, but the reward is a flower that looks like a piece of living art. They are a favorite for competitive growers and high-end floral designers.
Incurve and Reflex Varieties
The Incurve (Classes 1, 2, and 3) and Reflex (Class 4) mums are the ones you often see in corsages or huge floral displays. Incurves have petals that curve upward and inward toward the center, creating a giant ball.
Reflex varieties do the exact opposite. Their petals curve downward and outward, overlapping like the feathers on a bird. This creates a beautiful, cascading umbrella effect that looks stunning in a raised planter.
These chrysanthemum types require “disbudding” if you want those massive single blooms. This means you must pinch off the side buds so the plant sends all its energy to one single, glorious flower at the top of the stem.
Growing Tips for Different Chrysanthemum Types
Success with mums starts the moment you put them in the ground. While different chrysanthemum types require different levels of attention, there are a few universal rules that will help you succeed.
First, always choose a spot with full sun. Mums need at least six to eight hours of direct sunlight to produce the energy required for those spectacular blooms. Shady spots lead to leggy plants and fewer flowers.
Second, drainage is non-negotiable. Mums have relatively shallow root systems and hate having “wet feet.” If your soil is heavy clay, consider planting them in raised beds or adding plenty of organic compost to loosen the soil.
The Secret of Pinching
If you want that classic, bushy shape, you have to be brave enough to “pinch” your plants. Starting in late spring, use your fingers to snip off the top inch of every green shoot.
This encourages the plant to branch out rather than grow tall and lanky. I usually follow the “July 4th Rule”—stop all pinching by the first week of July to allow the plant enough time to set its flower buds for the fall.
Don’t worry—it might feel like you are hurting the plant, but you are actually making it much stronger. A pinched mum will produce three to four times as many flowers as an un-pinched one.
Watering and Feeding
Mums are thirsty plants, especially when they are actively blooming. Water them at the base of the plant to keep the foliage dry, which helps prevent fungal diseases like powdery mildew.
During the growing season, use a balanced liquid fertilizer every two weeks. Once the flower buds start to show their color, you can stop fertilizing and just focus on keeping the soil consistently moist.
If you are growing your mums in pots, remember that they dry out much faster than those in the ground. In the heat of late August, you might need to water your containers every single morning.
Common Challenges When Growing Mums
Even the most experienced gardeners run into trouble occasionally. The most common issue is “winter kill.” Many people treat mums as annuals, but they can be perennials if handled correctly.
To give them the best chance of returning next year, don’t cut the dead stems back in the fall. Leave them standing through the winter to protect the crown of the plant. Add a thick layer of mulch around the base once the ground freezes.
Another challenge is the sudden appearance of aphids or spider mites. These tiny pests love the succulent new growth of mums. A simple spray of insecticidal soap or a sharp blast of water from the hose usually keeps them under control.
Safety and Pet Precautions
It is important to note that chrysanthemums contain pyrethrins. While this makes them great for natural pest control in the garden, it also makes them toxic to dogs, cats, and horses if ingested.
If you have curious pets that like to nibble on your greenery, make sure to plant your mums in areas that are inaccessible to them. Always seek help from a veterinarian immediately if you suspect your pet has eaten any part of the plant.
Symptoms of mum toxicity in pets can include drooling, vomiting, and diarrhea. Being a responsible gardener means keeping your furry friends safe while you enjoy your beautiful blooms.
Frequently Asked Questions About Chrysanthemum Types
Which chrysanthemum types are best for beginners?
I highly recommend starting with Garden Mums (specifically Single or Decorative classes). They are bred for hardiness, require no staking, and naturally grow into that beautiful mounded shape with minimal effort.
Can I grow exhibition mums in my backyard?
Yes, you certainly can! However, be prepared to provide more support. You will need to use bamboo stakes to keep the heavy heads from drooping and perhaps a temporary overhead cover to protect the delicate petals from heavy rain.
How do I know if my mum is a perennial or an annual?
Most “florist mums” sold in grocery stores are meant to be short-term indoor plants and lack the root system to survive a winter. Look for “Hardy Mums” at a local nursery, which are specifically bred to survive in zones 5 through 9.
Why did my mums bloom too early?
This often happens if the plant experienced a period of cool weather followed by shorter days in early summer. It can also happen if the plant was “heat-stressed.” Keeping your plants well-watered and following the pinching schedule helps prevent early blooming.
Conclusion
Choosing between the various chrysanthemum types is one of the most rewarding parts of fall gardening. Whether you fall in love with the whimsical spider mum or the reliable garden pompon, these flowers bring a sense of joy and completion to the growing season.
Remember to focus on good drainage, plenty of sunlight, and that all-important pinching in the early summer. If you provide those three things, your garden will be the star of the neighborhood well into November.
Don’t be afraid to experiment with different colors and textures this year. Gardening is all about learning and growing alongside your plants. Go forth and grow a spectacular autumn display!
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