General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun
Full Sun to Partial Shade
Water Preferences: Mesic
Soil pH Preferences: Slightly acid (6.1 – 6.5)
Minimum cold hardiness: Zone 5a -28.9 °C (-20 °F) to -26.1 °C (-15 °F)
Maximum recommended zone: Zone 10b
Plant Height: 4-6 feet
Plant Spread: 2-3 feet
Leaves: Unusual foliage color
Deciduous
Flowers: Showy
Blooms on new wood
Flower Color: Bi-Color: white, hot pink/red eye, veining
Bloom Size: 4"-5"
5"-6"
6"-12"
Flower Time: Late spring or early summer
Summer
Late summer or early fall
Fall
Underground structures: Taproot
Wildlife Attractant: Bees
Butterflies
Hummingbirds
Resistances: Powdery Mildew
Tolerates dry shade
Humidity tolerant
Propagation: Seeds: Suitable for wintersowing
Sow in situ
Start indoors
Propagation: Other methods: Cuttings: Stem
Cuttings: Tip
Cuttings: Cane
Division
Crowns
Pollinators: Various insects
Containers: Suitable in 3 gallon or larger
Miscellaneous: Tolerates poor soil
Patent/Plant Breeders' Rights: Patent #US PP10,793
Child plants: 3 child plants

Image
Trade name information:
Series: Fleming Hardy Hibiscus™
Cultivar name: 'Kopper King'

'Kopper King' was a featured
Plant of the Day for September 6, 2015.
Photo Gallery
Location: Northwest NJ
Date: 2017-08-13

Date: Jun 24, 2008 2:14 PM
Location: Utah, neighbor's plant
Date: 2015-08-08
Location: Utah, neighbor's plant
Date: 2015-08-08
Location: Hudson valley NY
Date: 2014-08-27
Location: My backyard in Allentown, PA
Date: 26 August 2016
Up close and personal with the business portion of the flower on
Location: Western Washington
Date: 2014-08-29
Location: Central Texas
Date: 2017-07-12
Location: Youngsville, LA
Date: 2015-06-04
By tabbycat
Location: Zone 9 Louisiana my yard
Date: 2018-06-07
This shows perfect markings
Location: Southern Michigan
Date: 2015-08-11
Location: Southern Michigan
Date: 2015-08-11
Location: Central Texas
Date: 2018-04-28
This photo shows emerging spring growth while growing in a small
Location: My backyard in Allentown, PA
Date: 2016-08-26
Newly installed plant rewards me with back-to-back flowers on 26
Location: Texas A&M AgriLife Research & Extension Center, Overton, TX
Date: 2014-06-26
  • Uploaded by jon
Location: Sooner Plant Farm in Oklahoma
Date: 2017-07-11
Image Property of SoonerPlantFarm.com
Location: This is in my front yard close to the road. 
Date: 2014-07-29
One of my favorites. I love the darker veins in the petals
Location: Nortwest NJ
Location: tabbycat's yard zone 9
Date: 2018-06-07
Full 8 inch flowers

Courtesy Crownsville Nursery
  • Uploaded by vic
Location: My Yard, zone 6a
Date: 2010-08-01
Location: Illinois State University Horticultural Center, Normal, IL
Date: 2010-11-23
Location: Illinois State University Horticultural Center, Normal, IL
Date: 2010-11-23
Kopper King Hardy Hibiscus
Location: Litchfield, NH
Date: 2017-07-23
Location: Zone 9 Louisiana my yard
Date: 2018-06-14
My 3 ft. plant needed staking for weight of flowers
Location: My garden in Aurora, Ontario zone 5b
With H. Fireball in background
Location: Leland, NC
Location: My garden in Aurora, Ontario zone 5b
Date: 2015-08-17
Location: One of my 2 growing on north side of house zone 9
Date: 2020-08-18
Two 2" buds 2 days from opening & dark lance shaped leaf

Date: 2015-08-01
Location: Central Texas
Date: 2017-07-12
Location: My Yard, zone 6a
Date: 2010-08-01
Location: My Yard, zone 6a
Date: 2010-08-01
Photo by froggardener
Location: Mountain City, Texas
Date: 2015-06-16
Location: Central Texas
Date: 2016-10-12

Date: 2012-07-23
Location: My zone 5 garden
Date: 2016-07-19
The Japanese Beetles only got a small section of the one bloom, h
Location: My backyard in Allentown, PA
Date: 26 August 2016
Newly installed plant on 26 August 2016.
Location: My garden in N E Pa. 
Date: 2013-07-29
Location: My backyard in Allentown, PA
Date: 28 August 2016
Budbreak at midday 28 August 2016.
Location: My backyard in Allentown, PA
Date: 2016-08-25
Two buds pop on 25 August 2016.
This plant is tagged in:
Image

Comments:
  • Posted by SongofJoy (Clarksville, TN - Zone 6b) on Feb 26, 2012 2:09 PM concerning plant:
    This hardy Hibiscus reaches 4 ft. in height. The 12" flowers are white with a red and then hot pink eye-zone that streaks out through the veination to the edges of the petals. It has a consistent copper-red leaf of a "maple cut" shape.

  • Posted by tabbycat (Youngsville, LA - Zone 9b) on Jun 11, 2018 4:54 PM concerning plant:
    My 2 plants were from a 5" wide root crown I got in a trade 5 years ago. I wanted 2 so just cut the crown in half with a serrated knife. They went straight in the ground in a flower bed against the north side of my house. It's a drier area under a gable where roof water doesn't fall and it's shady all winter but sunny all summer. They sprout in March as temps warm a little and grow to about 4' by mid May and start blooming their beautiful plate-sized flowers into summer. It's June 11, 2018, and they are full of buds and have had several flowers open since June 1. I posted a picture side by side with a paper plate to show that they grow to 8". Mine don't make seeds. Propagation would have to be by root crown division or cuttings, which I've never done.
  • Posted by NHJenDion (Southern NH - Zone 5b) on Oct 28, 2019 8:10 AM concerning plant:
    In my Zn 5 New England garden the (Japanese and other?) beetles absolutely devour this plant. I don't like to spray (Because I'd be doing it weekly!) so by the end of the season, this plant is literally naked. It's a shame because it's a great plant, but wow. They should include it in those 'bug bag traps' and they'd be more effective :\

Plant Events from our members
lovesblooms On March 13, 2016 Seeds germinated
lovesblooms On March 5, 2016 Seeds sown
indoors
lovesblooms On February 1, 2015 Seeds sown
winter sown
tabbycat On August 1, 2022 Bloomed
Plants are 3' with blooms now
tabbycat On July 1, 2020 Plant emerged
Found 3" to 5" sprouts on both
tabbycat On June 20, 2019 Bloomed
1st 8" flower of 2019 on a 3' plant with 2 more buds to open soon.
» Post your own event for this plant

« Add a new plant to the database

» Search the Hibiscus Database: by characteristics or by cultivar name

« See the general plant entry for Hibiscus

« Visit the Hibiscus forum

« The Hibiscus Database Front Page

« The Plants Database Front Page

Today's site banner is by sedumzz and is called "Dancing stars"

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.