FNPS Plant Database

Hydrolea corymbosa

skyflower
  • Photo by: Jeannie Brodhead, Saracennia Chapter FNPS
  • Photo by: Shirley Denton, Suncoast Chapter FNPS

Nomenclature

Common Name:

skyflower

Synonym(s):

Nama corymbosa

Genus species:

Hydrolea corymbosa

Family:

Hydroleaceae

Plant Specifics

Form:

flower

Size:

1-2 ft.

Life Span:

Long-lived perennial

Flower Color:

bright blue

Fruit Color:

dark brown

Phenology:

Spring blooming; winter dormant

Noted For:

Landscaping

Recommended Uses:

Moist wildflower gardens.

Considerations:

Availability:

Propagation:

Division, seeds, cuttings.  Spreads naturally by rysomes.

Light:

Moisture Tolerance:

Always Flooded---------------------------------Extremely Dry

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Stays wet -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:

Soil pH:

adaptable

Suitable to Grow In:

USDA zones are based on the average annual extreme minimum winter temperature.



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Ecology

Wildlife:

Pollinators

Bee pollinated.

Native Habitats:

Marshes and swamps

Natural Range in Florida:

Comments:

Ethnobotany:

General Comments:

The species is hermaphroditic (monecious), meaning flowers have both male and female reproductive structures on the same plant.



This is a near-endemic meaning that it occurs mostly in Florida with a few outlying populations in Georgia and South Carolina.

Citations:

BONAP Plant Atlas. (2014). Hydrolea corymbosa. ( https://bonap.net/MapGallery/County/Hydrolea%20corymbosa.png ). Accessed 2026. Biota of North America Program, Chapel Hill, NC.


Florida Wildflower Foundataion. (2025). Flower Friday: Blue Skyflower. ( https://flawildflowers.org/flower-friday-hydrolea-corymbosa/ ). Accessed 2026. Florida Wildflower Foundation, Maitland, FL.


Gann, G.D., C.J. Abbott, C.G. Stocking, K.N. Hines, and collaborators. (2001+), Natives For Your Neighborhood. ( https://www.regionalconservation.org/beta/nfyn/plantdetail.asp?tx=Hydrcory ). Accessed 2026. The Institute for Regional Conservation. Delray Beach, Florida.


Hammer, Roger. (2018). Complete Guide to Florida Wildflowers. Falcon Guides, Guilford, CT.


Osorio, Rufino. (2001). A Gardener's Guide to Florida's Native Plants. University Press of Florida, Gainesville.


Taylor, Walter K. (2013). Florida Wildflowers: A Comprehensive Guide. University Press of Florida, Gainesville.


Wunderlin, R. P., B. F. Hansen, A. R. Franck, and F. B. Essig. (1999+). Atlas of Florida Plants. ( https://florida.plantatlas.usf.edu/ ). [S. M. Landry and K. N. Campbell (application development), USF Water Institute.] Institute for Systematic Botany, University of South Florida, Tampa.

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