Hibiscus grandiflorus

swamp rosemallow

Malvaceae

Plant Specifics

Form:

flower

Size:

6-10 ft tall by 4 ft wide

Life Span:

short-lived perennial

Flower Color:

pink

Fruit Color:

brown

Phenology:

winter dormant

Noted For:

Showy Flowers

Landscaping

Recommended Uses:

Specimen plant or background screen for wet places.

Considerations:

Light:

Full Sun

Moisture Tolerance:

Aquatic ---- to ---- Usually moist, occasional inundation

Salt Water Flooding Tolerance:

Unknown

Salt Spray/Salty Soil Tolerance:

Low/no tolerance of salty wind or direct salt spray

Soil or Other Substrate:

Sand, Loam, Organic

Suitable to Grow In:

8A,8B,9A,9B,10A,10B,11

Ecology

Wildlife:

Pollinators, Butterflies, Caterpillars, Hummingbirds



  • Larval host of  Gray Hairstreak, Painted Lady Butterfly, Common Checkered Skipper and Tropical Checkered Skipper butterflies and  four moths : Pearly Wood Nymph, Yellow Scallop Moth, Io Moth,  and Delightful Bird-Dropping Moths.


  • Attracts butterflies and  native bees (including the Rose-mallow Bee which is a Hibiscus specialist), beetles, etc. 


Attracts butterflies, bees, beetles, and birds.

Native Habitats:

Depressions in pine flatwoods, brackish and freshwater marshes, edges of lakes and ponds, along rivers, swamps, canals, ditches. Commonly in water but may occur in dry floodplains and dry marshes.