PlantsDaylilies→Daylily (Hemerocallis 'So Cold')

Data specific to Daylilies (Edit)
AHS link: AHS Daylily Cultivar Info
Hybridizer: Howard-R.
Year of Registration or Introduction: 2017
Foliage type: Dormant
Scape height: 40 in, (102 cm)
Bloom size: 5.5 in, (14 cm)
Bloom time: Midseason-Late
Plant Traits: Diurnal
Bud Count: 21-25
Branching: 4-way
Bloom Traits: Halo
Bloom Form: Single
Color description: pale amethyst fading to near white as day progresses, with lighter halo

General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun to Partial Shade
Minimum cold hardiness: Zone 3 -40 °C (-40 °F) to -37.2 °C (-35)
Flowers: Showy
Propagation: Seeds: Will not come true from seed
Propagation: Other methods: Division
Ploidy: Tetraploid
Parentage: Mrs John Cooper x Piece of Sky

Photo courtesy of Rich Howard, CT Daylily

The 2014 All Things Plants Top 25 DayliliesThe 2014 All Things Plants Top 25 Daylilies
By dave on April 5, 2014

It's Daylilies Week, and we're opening the special event with a special report on the most popular daylilies, as judged by our members. How do we compile this list, and which cultivars got the award? Read on to find out!

(Full article6 comments)
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Photo gallery:
Photo courtesy of Rich Howard, CT Daylily
By Char
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Photo courtesy of Rich Howard, CT Daylily
By Char
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Photo courtesy of Rich Howard, CT Daylily
By Char
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Photo courtesy of Harbour Breezes Daylilies
By Joy
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Discussion Threads about this plant
Thread Title Last Reply Replies
It's here!! New AHS book on small and miniature daylilies by floota Jan 22, 2022 6:44 PM 2
suggestions for best "white" daylily? by agardenofdreams Jan 26, 2022 2:51 PM 50
which daylilies are better: dormant or evergreen or in-between? by LoriMT Jan 22, 2022 11:53 AM 28
two thumbs up by Bedmaker Jan 15, 2022 5:23 PM 4
Charlotte's International Garden of the Week by Char Jan 24, 2022 5:48 PM 27
Do I need to fertilize my daylilies? by LoriMT Jan 8, 2022 12:00 PM 42
Rebloom - bloom season - growth habit by admmad Jan 9, 2022 3:27 PM 88
A Look Back At Our 2021 Daylily Gardens... by Char Jan 20, 2022 7:28 AM 94
Suggestions wanted: yellow tetraploid reblooming in zones 5 to 6 by Hortaholic Jan 1, 2022 4:10 PM 28
OT ~ The Porch Swing ~ Winter 2021/2022 by Char Jan 28, 2022 9:18 AM 600
Weather In Your Garden ~ Winter 2021/2022 by Char Jan 28, 2022 8:41 AM 610
Cold for daylillies by creativeclover Dec 13, 2021 6:02 AM 2
Hi everyone by creativeclover Dec 20, 2021 6:04 AM 17
Australia (Queensland) - Daylily Blooms - December 2021 by RobynMcK Dec 16, 2021 2:23 PM 21
Bearded daylilies by Terriea Jan 22, 2022 12:22 PM 60
Daylily ID please by RobynMcK Dec 13, 2021 8:41 AM 17
Avian Apocalypse? by Sscape Nov 24, 2021 1:38 PM 21
2022 What's on Your List by Legalily Jan 27, 2022 7:26 PM 233
Daylily Dispatch - Newsletter of the American Daylily Society by goedric Dec 13, 2021 1:51 AM 22
Plant new daylilly in Nov or March? by Adamsf Nov 7, 2021 3:18 PM 2

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