Daylily (Hemerocallis 'Cool Summer') in the Daylilies Database

Data specific to Daylilies (Edit)
AHS link: AHS Daylily Cultivar Info
Hybridizer: Sellers
Year of Registration or Introduction: 1990
Ploidy: Diploid
Foliage type: Semi-evergreen
Scape height: 26 inches
Bloom size: 5.5 inches
Bloom time: Midseason
Plant Traits: Rebloom
Bloom Traits: Self
Edged
Bloom Form: Single
Color description: yellow self with serrated edges and green throat

General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun to Partial Shade
Minimum cold hardiness: Zone 4a -34.4 °C (-30 °F) to -31.7 °C (-25 °F)
Flowers: Showy
Fragrant
Propagation: Seeds: Will not come true from seed
Propagation: Other methods: Division

The 2014 All Things Plants Top 25 DayliliesThe 2014 All Things Plants Top 25 Daylilies
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!

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Discussion Threads about this plant
Thread Title Last Reply Replies
Observations of Dormancy by admmad Nov 7, 2019 1:39 PM 27
Sick Daylilies - Coastal Texas - Zone 9 by adc1947 Oct 26, 2019 4:50 PM 6
October 2019 blooms by profesora Oct 31, 2019 4:33 PM 256
Weather In Your Garden ~ Fall 2019 by Char Nov 13, 2019 8:01 AM 631
OT ~ The Porch Swing ~ Fall 2019 by Char Nov 13, 2019 7:45 AM 851
The Keeper Bed by josieskid Oct 18, 2019 6:05 AM 36
September 2019 Daylily Blooms by Charlemagne Oct 4, 2019 7:15 AM 436
August 2019 Daylily Blooms by Hazelcrestmikeb Sep 4, 2019 7:37 AM 489
daylily breeding by DAVIDRETALLICK Jul 19, 2019 3:44 PM 5
July 2019 Blooms by mantisOH Aug 13, 2019 7:55 AM 713
OT ~ The Porch Swing ~ Summer 2019 (CLOSED) by Char Sep 23, 2019 4:10 AM 1,706
Weather In Your Garden ~ Summer 2019 (CLOSED) by Char Sep 23, 2019 4:22 AM 1,216
name this daylily 2019 #1 by spunky1 Apr 27, 2019 11:30 AM 57
First Scape Of 2019 by Avedon Jul 6, 2019 12:09 PM 104
How good are you at expanding your bloom season? by lovegrillin Apr 5, 2019 4:07 PM 33
Weather In Your Garden ~ Spring 2019 (CLOSED) by Char Jun 21, 2019 4:24 AM 1,145
Weed Control in Daylily Beds by bluegrassmom Mar 22, 2019 6:10 AM 30
Need help about how evergreen daylilies grow in mild winter climates FL, CA, etc by admmad Apr 5, 2019 10:32 AM 31
Weather In Your Garden ~ Winter 2018/2019 (CLOSED) by Char Mar 20, 2019 4:35 AM 1,271
October 2018 blooms by profesora Oct 29, 2018 8:04 AM 84

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