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!)
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.