Ruby Mound is just starting to open...

Chrysanthemum 'Ruby Mound' 10/2021 Mum- (Lehman) Hardy Garden Cushion Mum, Mature size: 36", deep maroon double cushion, Small Decorative, USDA Hardiness Zone 5, Michigan Bloom Week ISO WW40, In Garden Bed Y2,9,-2 C3 for 6.3 YEARS (Jennifer). Planted in 2015.

GardenerWorld.com: Korean chrysanthemums were once popular for use as hardy perennials for borders and cottage garden schemes, as they are hardy and free flowering. A few of the best have survived, including Chrysanthemum 'Ruby Mound', which bears large double ruby red flowers from late summer into autumn. It makes an excellent cut flower.

Grow Chrysanthemum 'Ruby Mound' in moist but well-drained soil in full sun to partial shade. If grown in a crowded border plants do not usually need staking, especially if an informal look is desired. Plants may need staking on windier sites, and winter protection is advised in northerly and exposed regions.

Family Asteraceae (ass-ter-AY-see-ee). Hardy Garden Mum, deep maroon double flowers. Flowers over a long period. Planted in 2015. (Lehman) Deep ruby-mound. Cushion Mum. Pigment penetrates petals avoiding faded flowers. 2020 note: I failed to support it this year, so it splayed. Seems to have no trouble handling the cold Michigan winters and wind. Survived 5 winters so far.

Photo by F.D.Richards, SE Michigan. Additional photos of this plant from 2015, 16, 17, 18, 19, 20, 21:

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I need to do a better job with the support:)

Chrysanthemum rubellum 'Mary Stoker' 9/2021 Mum- () Korean Mum, Mature size: 2-3', Yellow single, USDA Hardiness Zone 5, Michigan Bloom Week ISO WW38, In Garden Bed S3,8,2 C3 C1 (2016) for 6.3 YEARS (bluestone). Planted in 2015.

Family Asteraceae (ass-ter-AY-see-ee). An old fashioned mum. Straw/apricot yellow flowers turn gold in September/October. It blooms earlier than other Korean mums. One google says it's an heirloom from Russia. Planted in 2015. 2 root cuttings, 2016. Considerable die back in 2019.

Photo by F.D.Richards, SE Michigan. Additional photos of this plant from 2015, 16, 17, 18, %1, 19, 21:

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My tall-upright mums (i dont know the formal way of describing what type ) have not bloomed yet . I see buds though

Yes, I would call them upright as opposed to cushion. I have a coupe that have not yet bloomed. Actually, I have one that generally blooms in November...

I think there are many terms to describe the flower types.

Chrysanthemum 'Centerpiece' 9/2021 Mum- (UofMN, 1982) Upright Garden Mum, Mature size: 24", Rose lavender quill spoon (9B-P), USDA Hardiness Zone 5, Michigan Bloom Week ISO WW37, In Garden Bed J2,11 for 5.3 YEARS (FGI). Planted in 2016.

Family Asteraceae (ass-ter-AY-see-ee). University of Minnesota, 1982. Rose-lavender with gold center, 4in. quill/spoon. Tall upright. Looks good in 2017, 2018. One of my stronger growing mums.

2020 notes: This mum is in its forth year and is still going strong. Most of my other mums did not make it through the first or second winter. Soil in this garden is mostly clay and sometimes wet. There were another 11 mums that were planted in this garden and all have croaked.

Photo by F.D.Richards, SE Michigan. Additional photos of this plant from 2016, 17, 18, %2, 19, 20, 21:

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Chrysanthemum rubellum 'Cambodian Queen' 10/2021 Mum- () Garden Mum, Mature size: 2-3', Pink Single Daisy, USDA Hardiness Zone 5, Michigan Bloom Week ISO WW40, In Garden Bed S3,8,3 for 6.4 YEARS (bluestone). Planted in 2015.

Family Asteraceae (ass-ter-AY-see-ee). An old fashioned mum. A sport of 'Sheffield'. Note­worthy but less common mum with a similar habit and pink blooms. Planted in 2015. Attractive leaves. Considerable die back in 2019. Still alive in 2020.

Photo by F.D.Richards, SE Michigan. Additional photos of this plant from 2015, 16, 17, 18, 19, 20, 21:

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Looking better as the season rolls on...

Chrysanthemum 'Centerpiece' 10/2021 Mum- (UofMN, 1982) Upright Garden Mum, Mature size: 24", Rose lavender quill spoon (9B-P), USDA Hardiness Zone 5, Michigan Bloom Week ISO WW37, In Garden Bed J2,11 for 5.4 YEARS (FGI). Planted in 2016.

Family Asteraceae (ass-ter-AY-see-ee). University of Minnesota, 1982. Rose-lavender with gold center, 4in. quill/spoon. Tall upright. Looks good in 2017, 2018. One of my stronger growing mums.

2020 notes: This mum is in its forth year and is still going strong. Most of my other mums did not make it through the first or second winter. Soil in this garden is mostly clay and sometimes wet. There were another 11 mums that were planted in this garden and all have croaked.

Photo by F.D.Richards, SE Michigan. Additional photos of this plant from 2016, 17, 18, %2, 19, 20, 21:

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Chrysanthemum 'Butterscotch Centerpiece' 10/2021 Mum- (UofMN, 2000) Upright Garden Mum, Mature size: 24", Peach quill spoon, USDA Hardiness Zone 5, Michigan Bloom Month 9a, In Garden Bed H1,2c for 29 MONTHS (FGI). Planted in 2019.

Aster Family. University of Minnesota, 2000. Tall Upright. Butterscotch colored with gold center, quill/spoon. One of two in H1 that made it thru the 2019/20 winter

Photo by F.D.Richards, SE Michigan. Additional photos of this plant from 2019 20, 21:

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Chrysanthemum 'Wild Berry' 10/2021 Mum- () Hardy Cushion Mum, Mature size: 24", Rose Pink, USDA Hardiness Zone 5, Michigan Bloom Week ISO WW41, In Garden Bed Y2,9,-1 for 4.3 YEARS (Bluestone). Planted in 2017.

Rose pink Cushion Mum. Low mounds. Advertised as a short 12 inch plant. Mine is ~24 inches tall. Cushion mums are a type of hardy mum or garden mum. The name comes from the way they form a mound or cushion of bloom.

2020 note: Vigorous plant. Quite hardy. Many of the so called hardy mums that I have planted here in Michigan do not make it over winter. This one has survived 3 winters. Not sure of the plants origin, but it seems as hardy as the old time Korean heirlooms. If it is an heirloom, the name would suggest a more recent "marketing" moniker. Bluestone Perennials is the only nursery that I am aware of that carries this plant.

Photo by F.D.Richards, SE Michigan. Additional photos of this plant from 2017, 18, 19, 20, 21:

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Your garden is beautiful, Frank! What is your trim schedule with the chrysanthemums? They all look in good shape.

LorettaNJ said:Your garden is beautiful, Frank! What is your trim schedule with the chrysanthemums? They all look in good shape.

Thanks. I do not trim any of my mums. In the spring, I remove last years growth.

That is impressive. I always had issues with overwintering chrysanthemums flopping over.

Chrysanthemum rubellum 'Venus' 10/2021 Mum- (¿cummings, 1930) Hardy Garden Mum, Mature size: 2-3', small flower, soft pale pink maturing to white, USDA Hardiness Zone 5-9, Michigan Bloom Month 10-11, In Garden Bed F4,12,1 for 5.5 YEARS (accents). Planted in 2016.

The Garden Geeks: Venus chrysanthemum (chrysanthemum rubellum) is a clump forming, bushy perennial, with woody stem bases. They have pinnatisect leaves. Great for herbaceous border or cutting. "the term korean mum is a bit of misnomer. They may have some lineage that traces back to asia but most of the early work done in developing this type of mum is credited to connecticut nurseryman and plant breeder, alex cummings, in the 1930s. They are frequently listed as chrysanthemum rubellum but many are actually hybrids of several chrysanthemum types. In general these mums have a more vigorous habit than garden mums and are more graceful, with thinner stems and a willowy, sometimesfloppy, habit. The color range is somewhat limited to whites, pinks, soft yellows and shades of gold. If you are willing to explore he internet enthusiastically you may unearth a purple variety or two. The fact that they begin to flower in mid-october and continue past a few frosts make them especially nice for late season color.

2021 note: this mum seems to be more hardy than many of the other so called "hardy" mums. Going strong after over 5 years in the garden.

Photo by F.D.Richards, SE Michigan. Additional photos of this plant from 2016, 17, 18, %1, 19 20, 21:

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That's one plant??? Wow!!!

Chrysanthemum rubellum 'Cleo's Pink' 10/2021 Mum- (Heirloom) Hardy Garden Mum, Mature size: 2-3', Single clear pink, USDA Hardiness Zone 5-9, Michigan Bloom Week ISO WW41, In Garden Bed F4,11,1 for 5.5 YEARS (accents). Planted in 2016.

AKA Celo Pink. Heirloom. An old fashioned mum. Tolerates poor soil, well drained, sun, growing to 30in. tall. Very cold hardy. Still in full bloom in November after several hard frosts.

Photo by F.D.Richards, SE Michigan. Additional photos of this plant from 2016, 17, 18, %3, 19 20, 21:

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I like that one.

Chrysanthemum rubellum 'Emperor of China' 10/2021 Mum- (Heirloom) Garden Mum, Mature size: 3-4', double pink with dark centers, USDA Hardiness Zone 4, Michigan Bloom Week ISO WW42, In Garden Bed Y2,6,-3 for 6.4 YEARS (selectseeds). Planted in 2015.

Finegardening: Chrysanthemum 'Emperor of China' (Z 4–9). Reaching a height of 3 to 4 feet, this selection has dark pink buds that form beautiful double flowers, which are pink with dark centers. The 1½-inch-wide blooms with quilled petals open quite late, usually not until the third week of October, but they last until Thanksgiving if there is no killing frost. 'Emperor of China' can appear lanky, so I recommend placing it in the middle or back of the border or pinching it in late spring.

Family Asteraceae (ass-ter-AY-see-ee). Heirloom. An old fashioned mum. Leaves turn beetroot red with age. Tall and spindly, needs support. Limited blooms in 2018 because of October frosts. 2020 notes: have had several frosts in October. Seems to be holding its own. Frosts have not been hard. Might try mulching this winter.

Photo by F.D.Richards, SE Michigan. Additional photos of this plant from 2015, 16, 17, 18, %3, 19 20, 21:

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What a fantastic collection of hardy mums you have, Frank! Centerpiece and Venus are so pretty! Love their colors!

I also have a problem with my hardy mums flopping and sprawling like LorettaNJ noted above. I tried to provide support but they are so heavy when bloom that the support sometime gives way. Here are some mums that are blooming right now.

Ticonderoga


Amber Morning


Lost Tag


Helen Mae


Lost Tag


Stray Seedling


NOID


Non hardy mum


I lost Volunteer and Homecoming to winter. I guess those were not as hardy as the above. I would like to try them again though because they are very pretty.

Wow, Lost Tag sure has variable blooms!!

You have a lot of nice selections, Karen. These are all perennial for you?