Hibiscus Species, Hardy Hibiscus, Rose Mallow, Swamp Mallow
Hibiscus moscheutos
Family: | Malvaceae (mal-VAY-see-ee) (Info) |
Genus: | Hibiscus (hi-BIS-kus) (Info) |
Species: | moscheutos (mos-KEW-tos) (Info) |

Height:
36-48 in. (90-120 cm)
4-6 ft. (1.2-1.8 m)
Spacing:
24-36 in. (60-90 cm)
Hardiness:
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)
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)
Sun Exposure:
Full Sun
Bloom Color:
Pink
Rose/Mauve
Red
White/Near White
Bloom Time:
Mid Summer
Late Summer/Early Fall
Foliage:
Deciduous
Other details:
Soil pH requirements:
6.1 to 6.5 (mildly acidic)
Patent Information:
Non-patented
Propagation Methods:
By dividing the rootball
From herbaceous stem cuttings
From seed; sow indoors before last frost
From seed; direct sow after last frost
Seed Collecting:
Allow pods to dry on plant; break open to collect seeds
Foliage Color:
Bloom Characteristics:
Water Requirements:
Average Water Needs; Water regularly; do not overwater
Requires consistently moist soil; do not let dry out between waterings
Where to Grow:
Regional
This plant is said to grow outdoors in the following regions:
Anniston, Alabama
Arley, Alabama
Auburn, Alabama
Gadsden, Alabama
Houston, Alabama
Jones, Alabama
Tempe, Arizona
Clayton, California
Roseville, California
Upland, California
Wildomar, California
Denver, Colorado
Lewes, Delaware
Bradenton, Florida
Gainesville, Florida
Holmes Beach, Florida
Inverness, Florida
Jacksonville, Florida(2 reports)
Keystone Heights, Florida
Lake Mary, Florida
Nokomis, Florida
Orange Park, Florida
Rockledge, Florida
Shalimar, Florida
Brunswick, Georgia
Clarkston, Georgia
Cordele, Georgia
Decatur, Georgia
Marietta, Georgia
Richmond Hill, Georgia
Rutledge, Georgia
Savannah, Georgia
Thomson, Georgia
Villa Rica, Georgia(2 reports)
Carterville, Illinois
Chicago, Illinois
Evergreen Park, Illinois
Hampton, Illinois
Mount Prospect, Illinois
Washington, Illinois
Columbus, Indiana
Jeffersonville, Indiana
Warren, Indiana
Belle Plaine, Kansas
Osage City, Kansas
Wichita, Kansas
Calvert City, Kentucky
Ewing, Kentucky
Louisville, Kentucky
Taylorsville, Kentucky
Baton Rouge, Louisiana
New Orleans, Louisiana
Norco, Louisiana
Zachary, Louisiana
Arnold, Maryland
Boyds, Maryland
West Friendship, Maryland
Chatham, Massachusetts
Halifax, Massachusetts
Roslindale, Massachusetts
Springfield, Massachusetts
Sterling, Massachusetts
Birch Run, Michigan
Dearborn Heights, Michigan
Fennville, Michigan
Mason, Michigan
Pinconning, Michigan
Sanford, Michigan
Temperance, Michigan
Thompsonville, Michigan
White Lake, Michigan
Little Falls, Minnesota
Minneapolis, Minnesota
Florence, Mississippi
Mathiston, Mississippi
Mccomb, Mississippi
Aurora, Missouri
Liberty, Missouri
Marshfield, Missouri
Piedmont, Missouri
Rolla, Missouri
Saint Louis, Missouri
Saint Robert, Missouri
Blair, Nebraska
Exeter, Nebraska
Lincoln, Nebraska(2 reports)
Bridgewater, New Jersey
Edison, New Jersey
Frenchtown, New Jersey
Garwood, New Jersey
Haddonfield, New Jersey
Jamesburg, New Jersey
Nutley, New Jersey
Piscataway, New Jersey
Albuquerque, New Mexico
Buffalo, New York
Hamburg, New York
Huntington Station, New York
Tonawanda, New York
Durham, North Carolina(2 reports)
High Point, North Carolina
Sanford, North Carolina
Statesville, North Carolina
Bucyrus, Ohio
Cincinnati, Ohio
Columbus, Ohio
Cortland, Ohio
Hilliard, Ohio
Lynchburg, Ohio
Medina, Ohio
Oak Hill, Ohio
Toledo, Ohio
Bartlesville, Oklahoma
Chickasha, Oklahoma
Jay, Oklahoma
Mustang, Oklahoma
Tulsa, Oklahoma
Irrigon, Oregon
Erie, Pennsylvania
Irwin, Pennsylvania
Johnsonburg, Pennsylvania
Lehigh Valley, Pennsylvania
Palmerton, Pennsylvania
Tionesta, Pennsylvania
San Juan, Puerto Rico
Bluffton, South Carolina
Columbia, South Carolina
Conway, South Carolina
Myrtle Beach, South Carolina
North Augusta, South Carolina
North Charleston, South Carolina
Bon Aqua, Tennessee
Covington, Tennessee
Knoxville, Tennessee
Lenoir City, Tennessee
Middleton, Tennessee(2 reports)
Murfreesboro, Tennessee
Austin, Texas(2 reports)
Brazoria, Texas
Broaddus, Texas
Cleburne, Texas
Dallas, Texas
El Paso, Texas
Gainesville, Texas
Houston, Texas
Kerrville, Texas
Lubbock, Texas
New Caney, Texas
Plano, Texas
San Antonio, Texas(3 reports)
Spicewood, Texas
Spring Branch, Texas
Delta, Utah
Falls Church, Virginia
Leesburg, Virginia
Manakin Sabot, Virginia
Mechanicsville, Virginia
Concrete, Washington
Quilcene, Washington
Seattle, Washington(2 reports)
Philippi, West Virginia
Brookfield, Wisconsin
Eau Claire, Wisconsin
Edgar, Wisconsin
Oconomowoc, Wisconsin
Sauk City, Wisconsin
show allGardeners' Notes:
Rating | Content |
---|---|
Positive | On Jun 20, 2015, coriaceous from ROSLINDALE, MA wrote: Easy, beautiful. Does well under ordinary garden conditions in full sun---it enjoys boggy conditions but does not require them. It does not require consistent moisture, and is reasonably tolerant of drought. It self-sows here with abandon in ordinary garden soil with no irrigation. |
Positive | On Jun 20, 2015, Pippinincarnate from Hamburg, NY wrote: I've seen this plant growing wild at the waters edge of presque isle bay in Erie Pennsylvania. HUGE pink blooms in august and september. Apparently it is an adventive species in the northern USA and is now expanding into southern Canada. |
Neutral | On Jun 28, 2004, Wingnut from Spicewood, TX (Zone 8b) wrote: I haven't grown this plant myself, but have seen it at the Lady Bird Johnson National Wildflower Research Center growing in a bog area and hanging over the pond at the front entrance of the center. It can DEFINITELY live in boggy, wet areas, hence the name "Swamp Rose". |