Daylily (Hemerocallis 'Joan Senior') in the Daylilies Database

Data specific to Daylilies (Edit)
AHS link:	AHS Daylily Cultivar Info
Hybridizer:	Durio
Year of Registration or Introduction:	1977
Foliage type:	Evergreen
Scape height:	25 inches
Bloom size:	6 inches
Bloom time:	Early midseason
Plant Traits:	Extended Bloom Rebloom
Rust Resistance:	Shows Susceptibility
Rust Resistance Decimal Score:	2.5
Bloom Traits:	Self
Bloom Form:	Single
Color description:	near white self with lime green throat
AHS Awards:	Award of Merit: 1984 Honorable Mention: 1981 JC: 1977 LAA: 1990

General Plant Information (Edit)
Plant Habit:	Herb/Forb
Life cycle:	Perennial
Sun Requirements:	Full Sun to Partial Shade
Minimum cold hardiness:	Zone 5a -28.9 °C (-20 °F) to -26.1 °C (-15 °F)
Flowers:	Showy Fragrant
Propagation: Seeds:	Will not come true from seed
Propagation: Other methods:	Division
Ploidy:	Diploid
Parentage:	Loving Memories x Little Infant)
Child plants:	201 child plants

Common names

Daylily

'Joan Senior' was a featured
Plant of the Day for November 27, 2015.

Photo Gallery

Location: My garden, Baltimore MD
Date: 2017-06-28

Uploaded by Jillz

Location: Statesboro, Georgia
Date: 2020-05-22

Uploaded by DeweyRooter

Location: garden-an excellent white
Date: 2015-12-20

Uploaded by Maryl

Location: My full sun West daylily bed zone 9
Date: 2019-09-11
After 3 months of blooms these are last 3 on last scape

Uploaded by tabbycat

Location: BX Creek Daylilies, Vernon, BC.
Photo by Gail Morgan of BX Creek Daylilies. Used with permission.

Uploaded by mcash70

Uploaded by Avedon

Location: Garden of eScapes Bellevue KY
Date: 2015-07-13

Uploaded by LilySue

Uploaded by mainstreet

Uploaded by D3LL

Location: Garden of eScapes Bellevue KY
Date: 2017-06-24

Uploaded by LilySue

Location: Stoneham MA
Date: July 30, 2020

Uploaded by Zoia

Uploaded by dave

Location: Mark's Park (home) zone 6a
Date: 2021-07-12
Joan Senior. Changes during season and yard location

Uploaded by MarksPark

Location: Nora's Garden - Castlegar, B.C.
Date: 2013-07-24
- Good substance to the petals, with a light ruffle at the edge.

Uploaded by HemNorth

Uploaded by Lucichar

Location: Stoneham MA
Date: July 31, 2022

Uploaded by Zoia

Location: From my collection. Poland.
Date: 2019-07-02

Uploaded by Orsola

Location: Manitoba, Canada
Date: 2016-07-28

Uploaded by DebbieC

Uploaded by cocoajuno

Location: Clinton, Michigan 49236
Date: 2017-10-21
"Hemerocallis 'Joan Senior', 2017, Near White [Daylily], hem-ur -

Uploaded by frankrichards16

Location: Shamong, NJ
Date: 2017-06-22
After the rain...

Uploaded by SNJDebbie24

Uploaded by Zoia

Location: Stoneham MA
Date: 2023-07-21
Joan Senior

Uploaded by Zoia

Posted with permission and photographed by Tee Money http://www.h

Uploaded by vic

Uploaded by Zoia

Photo Courtesy of Homestead Farms Nursery. Used with Permission.

Uploaded by Joy

Location: Manitoba, Canada
Date: 2015-07-22

Uploaded by DebbieC

Uploaded by D3LL

Location: My zone 5 garden
Date: 2016-07-19

Uploaded by ljb5966

Location: My day lily bed
Date: 2016-06-06

Uploaded by lovemyblooms

Location: My zone 5 garden.
Date: 2018-07-22

Uploaded by ljb5966

Location: Becket, MA
Date: 8/4/2022
Joan Senior at dawn

Uploaded by Silverglade

Uploaded by MaryDurtschi

Uploaded by Avedon

Location: North Carolina
Date: 2022-06-19
Joan Senior

Uploaded by CarolDravenack

Uploaded by kimkats

Location: Lower Saxony, Germany
Date: 2016-07-19

Uploaded by Wissenssucher

Location: My zone 5 garden
Date: 2016-07-15
I think this is the whitest flower I have.

Uploaded by ljb5966

Location: Macleay Island, Queensland, Australia
Date: 2013-11-15

Uploaded by Gleni

Location: Private Daylily Garden, MI
Date: 2006-07-28

Uploaded by DaylilySLP

Photo Courtesy of Mystic Meadows Daylily Farm. Used with Permissi

Uploaded by Joy

Location: home
Date: 2014-07-06
One of the whitest of those claiming to be near white.

Uploaded by SheilaC

Uploaded by SheilaC

Uploaded by SheilaC

Uploaded by jaymalick

Location: Gulf-coast Texas
Date: 2015-04-19

Uploaded by value4dollars

Location: My house in Portsmouth.
Date: 2012-08-25
Joan Senior

Uploaded by virginiarose

Location: Northville, MI
Date: August 1, 2024

Uploaded by knooper

Location: 382 River Road, Pequea, PA 17565
Date: August 1, 2015
Reliable and beautiful; does well in part shade in my garden

Uploaded by csandt

Photo Courtesy of Wood-Eden Daylilies & Cannas. Used with Permiss

Uploaded by Joy

Location: Stoneham MA
Date: 2024-07-10
Joan Senior

Uploaded by Zoia

Uploaded by DogsNDaylilies

Date: 2007-06-22
Posted with permission and photographed by Tanarae Tomlinson http

Uploaded by vic

Posted with permission and photographed by Jim Healey http://www.

Uploaded by vic

Uploaded by pixie62560

Uploaded by Calif_Sue

Uploaded by bron

Location: my zone 5 garden
Date: 2016-07-28

Uploaded by ljb5966

Uploaded by Ginad826

Uploaded by piksihk

Location: Clinton, Michigan 49236
Date: 2024-07-01
Hemerocallis 'Joan Senior' 24w27 341do Daylily J4 (Durio, 1977) N

Uploaded by frankrichards16

Uploaded by frankrichards16

Location: Dreamy Daylilies - Chatham-Kent, Ontario 5b
Date: 2013-07-17

Uploaded by Guybo

Location: Saaremaa, Estonia
Date: 2024-07-29

Uploaded by D3LL

Uploaded by MaryDurtschi

Uploaded by DogsNDaylilies

Uploaded by Ditchlily

Photo Courtesy of May's Acres Daylilies. Used with Permission.

Uploaded by Joy

Posted with permission and photographed by Marianne Joordens http

Uploaded by vic

Photo Courtesy of Daredevil Daylilies. Used with Permission

Uploaded by Joy

Location: my garden - square bed
Date: 2014-06-03

Uploaded by piksihk

Photo Courtesy of Nova Scotia Daylilies Used with Permission

Uploaded by vic

Uploaded by DaylilySLP

Location: Private Daylily Garden, MI
Date: 2006-07-16

Uploaded by DaylilySLP

Location: my zone 5 garden
Date: 2016-07-07
very first bloom on a 1 year old plant.

Uploaded by ljb5966

Uploaded by mlbowman45

Location: my zone 5 garden
Date: 2016-07-25

Uploaded by ljb5966

Photo Courtesy of E and B Farm Used with Permission

Uploaded by vic

Photo Courtesy of Nottawasaga Daylilies. Used with Permission.

Uploaded by Joy

Uploaded by frankrichards16

Courtesy of Peace on Earth Gardens Used with permission

Uploaded by vic

Image Courtesy of Bloomin Designs Nursery Used with Permission

Uploaded by vic

Photo Courtesy of Island Daylily Farm. Used with Permission.

Uploaded by Joy

There is one more image of this plant. Click to view them.

This plant is tagged in:

Comments:

Posted by DeweyRooter (southeast Georgia - Zone 8b) on Jun 10, 2021 9:45 AM concerning plant:

I am in zone 8b, and Joan Senior is one of my absolute favorites. She grows and spreads prolifically here, and her bloom period is quite long. Blooms are always perfect, and the foliage is attractive all winter.

I did have a bad rust outbreak in April this year, and Joan was severely affected. I cut all the fans back and treated with Green Magic. She has recovered and is putting on an impressive bloom show in June.

2 replies
Posted by tabbycat (Youngsville, LA - Zone 9b) on Jun 10, 2018 5:24 PM concerning plant:

In bloom now (June 10, '18) since mid May in south Louisiana. I believe its breeder, Durio, is a south LA native in a town nearby. 'Joan Senior' is plain but elegant, standing tall and being the palest yellow that looks white from 5' away. My flowers are 5", and not 6" as recorded. Maybe they'll be larger as it gets more established this year. I've only had it since last fall, so I'm excited to see its reblooming schedule. It's similar to the 'Ice Carnival' I have, too, but 'Joan' is not as tall.

Reply to this comment
Posted by DeweyRooter (southeast Georgia - Zone 8b) on Jun 8, 2022 7:04 AM concerning plant:

Since my earlier comment, I have had to get rid of my beautiful Joan Senior plants, which were among my very favorites. I thought I had solved the rust problem, but I hadn't. Unless you are willing to spray regularly with fungicides, I wouldn't plant this one if you are in the South. I regret saying this since the plant is beautiful and an excellent bloomer and increaser.

Reply to this comment

Plant Events from our members
piksihk	On June 16, 2023	Plant Ended (Removed, Died, Discarded, etc)
value4dollars	On May 1, 2014	Obtained plant DIP
Mellis0821	On June 5, 2019	Bloomed Bloomed at my house, much weaker than Alexa's. I should probably have watered more.
Mellis0821	On June 2, 2019	Bloomed First day of bloom at Alexa's
DeweyRooter	On September 6, 2021	Plant Ended (Removed, Died, Discarded, etc) Dug up and donated to a northern home. Since plants were so susceptible to rust, I decided to replace them with near-whites that were more rust-resistant.
DeweyRooter	On September 29, 2019	Obtained plant Received large plant from Oakes Daylilies as part of Evergreen Collection. Divided in two and planted in bed.
Mlbdphillips	On August 22, 2021	Obtained plant Ohio Daylily Society
SuperHappyCamper	On October 21, 2021	Obtained plant Received from tabbycat

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Daylilies Daylily (Hemerocallis 'Joan Senior')

Daylilies

Daylily (Hemerocallis 'Joan Senior')