Hardy Mum Plant: Care & Growing Guide

Hardy Mum Plant: Care & Growing Guide

Botanical Identify Chrysanthemum morifolium
Widespread Identify Hardy mums, backyard mums
Plant Sort Herbaceous perennial
Mature Dimension About 2 toes excessive
Solar Publicity Full solar
Soil Sort Effectively-drained, evenly moist, and wealthy
Soil pH Barely acidic to impartial
Bloom Time Late-summer or fall
Flower Shade Gold, yellow, bronze (rust), pink, burgundy, pink, lavender, purple, off-white, and white
Hardiness Zones three to 9 (USDA)
Native Space Asia and northeastern Europe
Toxicity Poisonous to animals

Hardy Mum Care

Rising these vegetation for optimum show worth requires getting a number of issues proper. They’re fussier to develop than many different vegetation. Word that there are cultivars thought of “hardy mums” and cultivars thought of “florist mums.” Hardy mums put out stolons. Florist mums put out few or no stolons and are much less prone to over-winter in chilly areas.

Since it’s so vital to know which cultivar you may be working with, it’s wiser to purchase mail-order hardy mums (single-stemmed rooted cuttings) from a catalog in spring somewhat than shopping for already-blooming potted mums within the fall. In an excellent catalog, you’ve gotten all the related data in entrance of you, together with which varieties are the hardiest. An instance of a nursery collection that’s hardy is ‘mammoth’.

One other profit of shopping for from a catalog is that you may plant your mums in spring. Spring planting offers the vegetation longer to turn out to be established, thereby bettering their possibilities of surviving the winter. Select a location the place they are going to be sheltered from winter winds.

After you have chosen chrysanthemum flowers appropriate in your space and planted them, you need to take care of them correctly. Don’t overcrowd chrysanthemums: Good air circulation reduces the possibility of illness.

Watch Now: Every thing to Know About Rising the Hardy Mum Plant


Develop hardy mums in full solar within the north. Within the south, nevertheless, they’ll revenue from being grown in gentle shade. Chrysanthemum flowers are “photoperiodic”: They bloom in response to the shorter days and longer nights skilled (within the northern hemisphere) in fall. Due to this fact, don’t plant chrysanthemum flowers close to road lights or evening lights: The unreal lighting could wreak havoc with their cycle.


Within the north, it’s important to offer mums that you simply want to develop as perennials in well-drained soil. It’s because it isn’t simply chilly temperatures that may kill mums in winter but additionally poor drainage.


Throughout the rising season, verify to make sure that the soil all through the foundation zone is evenly moist.

Temperature and Humidity

So long as vegetation are established earlier than winter, hardy mums do nicely in areas with onerous winters. For areas with milder winters, just like the southern half of america, care must be taken to guard vegetation from the cruel summer season warmth.


Fertilize in spring with a slow-release fertilizer. The NPK worth of the fertilizer ought to be 12-6-6. The good thing about utilizing a slow-release fertilizer is that you simply solely need to fertilize as soon as per 12 months. In the event you use a fertilizer that isn’t slow-release, you’ll have to fertilize a number of instances annually, as follows:

  • Fertilize your hardy mums as soon as every month in spring from the time that they first come up.
  • In summer season, fertilize as soon as in July.
  • Don’t fertilize after July. Any new development placed on after July can be too late to harden off for winter.

Are Hardy Mums Poisonous?

All components of the mum are dangerous if ingested by canines, cats, or horses, particularly the flower heads. The plant could cause pores and skin irritation in people however is not deadly for people or animals.

Signs of Poisoning

In pets similar to cats and canines, in addition to in horses, signs embrace vomiting, dermatitis, elevated salivation, diarrhea, and lack of coordination, in keeping with the ASPCA. Contact a veterinarian if these signs seem.

Hardy Mum Varieties

There are a number of completely different classes of mums, every with explicit traits and forms of its personal.

  • Anemone: That includes lengthy, flat petals, the blooms on one of these mum reaches a max measurement of about 4 inches. Varieties embrace light-purple ‘Dorothy Mechen’ and ‘Adrienne Mechen’, which have flowers with a pink heart that fades to shiny white ideas.
  • Pom pom: These fluffy mums are also referred to as button mums. All varieties produce compact blooms, simply in several colours. Some widespread varieties embrace ‘Patriot’, ‘Garnet’, ‘Tinkerbell’, and ‘West Level’.
  • Spoon: Named for its spoon-shaped petals, one of these mum grows petite flowers of simply 4 inches in diameter. Standard varieties embrace ‘Kimie’, that includes yellow-gold petals, and ‘Matchsticks’, which have yellow facilities that finish dramatically in shiny pink “spoons.”

Pruning Mums

Don’t prune the vegetation within the fall. Current branches supply safety for the roots. By each third spring, divide chrysanthemums to rejuvenate them. Hardy mums will probably be even hardier with winter safety. Mulch them for winter. If you cannot find them the place they are going to be sheltered from winter winds, then it is best to construct a modified model of the shrub shelters used for winter safety for shrubs.

Pinching hardy mums (emoving the ideas of latest development, thereby stimulating the vegetation to ship out side-shoots) requires extra upkeep than every other facet of caring for them. Pinching yields compact, bushy vegetation with extra blooms. It’s known as this as a result of, on non-woody vegetation, you may usually accomplish the duty just by greedy the stem (on the focused spot) between thumb and forefinger and severing it with a pinching motion.

Begin pinching within the spring when the brand new development has reached Four to six inches in size. After that, each two to a few weeks, pinch the middle out of any extra development when it reaches 6 inches. However cease pinching chrysanthemums across the starting of summer season, or else bud formation is not going to happen quickly sufficient to make sure flowering for fall.

You additionally need to be ever-mindful that, whereas chrysanthemum flowers maintain up in opposition to gentle frosts, onerous frosts will harm the blooms that you’ve labored so onerous to provide. Your pinching actions, then, should be balanced with the truth that you’re in a race in opposition to time to get blooms earlier than fall’s first onerous frost: That’s the reason it’s so vital to cease pinching on the proper time, primarily based on the cultivar you’ve gotten. Cease pinching:

  • Early-blooming cultivars by mid-June
  • Cultivars that bloom in September by late June
  • Cultivars that bloom in October by July 4
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