Hardy Hibiscus (Hibiscus moscheutos 'Kopper King') in the Hardy Hibiscuses Database

Trade name information:
Series: Fleming Hardy Hibiscus™
Cultivar name: 'Kopper King'
Common names:
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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
Flowers: Showy
Blooms on new wood
Flower Color: Bi-Color: white, hot pink/red eye, veining
Bloom Size: 4"-5"
Flower Time: Late spring or early summer
Late summer or early fall
Underground structures: Taproot
Wildlife Attractant: Bees
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
Pollinators: Various insects
Containers: Suitable in 3 gallon or larger
Miscellaneous: Tolerates poor soil
Patent/Plant Breeders' Rights: Patent #US PP10,793


Celebrating HibiscusesCelebrating Hibiscuses
August 29, 2015

We open the Hibiscus Celebration Week with a look at the top cultivars, top comments, most thumbed images, and more!

(Full article8 comments)
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'Kopper King' was a featured
Plant of the Day for September 6, 2015.

Photo gallery:

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Posted by SongofJoy (Clarksville, TN - Zone 6b) on Feb 26, 2012 2:09 PM

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.

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Posted by tabbycat (Youngsville, LA - Zone 9b) on Jun 11, 2018 4:54 PM

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.

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Plant Events from our members
lovesblooms On March 13, 2016 Seeds germinated
lovesblooms On March 5, 2016 Seeds sown
lovesblooms On February 1, 2015 Seeds sown
winter sown
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