Rose Mallow (Hibiscus moscheutos 'Plum Crazy') in the Hardy Hibiscuses Database

Trade name information:
Series: Fleming Hardy Hibiscus™
Cultivar name: 'Plum Crazy'
Common names:
Give a thumbs up Rose Mallow
Give a thumbs up Hardy Hibiscus
Give a thumbs up Swamp Mallow
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Give a thumbs up Swamp Rose Mallow

General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun
Full Sun to Partial Shade
Water Preferences: Mesic
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: Deciduous
Flowers: Showy
Flower Time: Summer
Late summer or early fall
Wildlife Attractant: Bees
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: Patent/Plant Breeders' Rights: Patent #US PP11,854 P2


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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'Plum Crazy' was a featured
Plant of the Day for October 10, 2015.

Photo gallery:

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Posted by Catmint20906 (Maryland - Zone 7a) on Aug 23, 2014 6:25 PM

Hardy Hibiscus (Hibiscus moscheutos 'Plum Crazy') produces huge, dusky mauve blooms in midsummer. 'Plum Crazy' likes full sun and medium to wet soil. Native to North America, 'Plum Crazy' has a mature height of around 4 feet. The Japanese beetles *love* 'Plum Crazy', and I have found companion planting, plus the use of Milky Spore, important to control grubs and beetles around this plant.

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Posted by SongofJoy (Clarksville, TN - Zone 6b) on Feb 26, 2012 2:12 PM

A 4' tall hardy Hibiscus with a 10" plum-colored flower. The flowers have strong purple veination to the edges of the petals. The "maple-cut" leaves are of a consistent dark purple coloring.

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Plant Events from our members
Catmint20906 On July 10, 2015 Bloomed
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Discussion Threads about this plant
Thread Title Last Reply Replies
Wow! by plantladylin Jul 12, 2013 12:07 PM 6
Floral Alphabet Soup: the letter H! by KatEnns Feb 6, 2018 10:13 PM 42
What's Blooming 2017 - Photos and Chat. by NJBob Jan 1, 2018 8:14 PM 1,563
Microwaving Pollen & Seeds from Midnight Marvel! by Xeramtheum Mar 21, 2018 8:07 PM 24
Question for the hybridizers by Polymerous Feb 19, 2019 10:36 PM 404
What's Blooming 2016 - Photos and Chat. by NJBob Dec 31, 2016 10:07 PM 1,927
of the Day: Hardy Hibiscus (Hibiscus moscheutos 'Plum Crazy') by Horntoad Oct 11, 2015 12:48 PM 6
What's Blooming - 2015 - Photos and chat. by NJBob Jan 1, 2016 6:25 PM 1,786
One of my favorite Hardy Hibs - what are yours? by SongofJoy Jun 20, 2016 12:44 PM 32
What's Blooming- - 2014 - - Photo's please! by Xeramtheum Jan 6, 2015 7:33 PM 2,770
Are these duplicates? by valleylynn Aug 26, 2013 8:37 AM 7

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