Hardy Hibiscus, Rose Mallow, Swamp Mallow 'Fantasia'

Hibiscus moscheutos

Family: Malvaceae (mal-VAY-see-ee) (Info)
Genus: Hibiscus (hi-BIS-kus) (Info)
Species: moscheutos (mos-KEW-tos) (Info)
Cultivar: Fantasia
Additional cultivar information:(PP11853)
Hybridized by Zwetzig-Fleming
Registered or introduced: 1999
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24-36 in. (60-90 cm)


24-36 in. (60-90 cm)

36-48 in. (90-120 cm)


USDA Zone 5a: to -28.8 C (-20 F)

USDA Zone 5b: to -26.1 C (-15 F)

USDA Zone 6a: to -23.3 C (-10 F)

USDA Zone 6b: to -20.5 C (-5 F)

USDA Zone 7a: to -17.7 C (0 F)

USDA Zone 7b: to -14.9 C (5 F)

USDA Zone 8a: to -12.2 C (10 F)

USDA Zone 8b: to -9.4 C (15 F)

USDA Zone 9a: to -6.6 C (20 F)

USDA Zone 9b: to -3.8 C (25 F)

Sun Exposure:

Full Sun

Bloom Color:




Bloom Time:

Mid Summer

Late Summer/Early Fall

Blooms repeatedly



Other details:

Unknown - Tell us

Soil pH requirements:

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

Patent Information:


Propagation Methods:

From herbaceous stem cuttings

From softwood cuttings

Seed Collecting:

N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Unknown - Tell us


This plant has been said to grow in the following regions:

Farmersburg, Indiana

Milo, Iowa

Hudson, New Hampshire

Allentown, Pennsylvania

Summerville, South Carolina

Cookeville, Tennessee

Salt Lake City, Utah

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Gardeners' Notes:


On Mar 24, 2015, janelp_lee from Toronto, ON (Zone 6a) wrote:

Mine is very hardy, it blooms for long time until freezing point! Produce huge flowers (14" or 35cm in diameter!)
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Very winter hardy without any protection. Very easy to grow!


On Oct 14, 2006, Meredith79 from Southeastern, NH (Zone 5b) wrote:

Beautiful blooms, I had mine planted in a location that received sun from about 8 am until about 2 pm. It did good, but seemed to bloom a bit later in the season than other Hibiscus I've seen growing in more sun in my neighbors yards. Mine started blooming August 25th, around the same time I started seeing damage from what I later found out was Hibiscus sawfly larvae. I've found out that if hand control is not enough, it can be treated with a product that contains spinosad. I'm not sure what this product is, and I probably won't use it unless it's safe for other wildlife. The larvae are often confused with caterpillars, which is what I thought they were at first. Being a butterfly lover I was sceptical about squishing them, until I saw they were not growing larger and they were skeletonizi... read more


On Sep 2, 2004, Debby from Milo, IA (Zone 5a) wrote:

Fantasia is an excellent grower for me. She is a very sturdy well bred hibiscus and has the gorgeous large Pink flowers, which some call Lavender.