• Photo by: Shirley Denton, Suncoast Chapter FNPS
  • Photo by: Shirley Denton, Suncoast Chapter FNPS
  • Photo by: Mark Hutchinson, Hernando Chapter, FNPS
  • Photo by: Shirley Denton, Suncoast Chapter FNPS
  • Photo by: Shirley Denton, Suncoast Chapter FNPS

Iris savannarum

prairie iris, savanna iris

Nomenclature

Common Name:

prairie iris, savanna iris

Synonym(s):

Genus species:

Iris savannarum

Family:

Iridaceae

Plant Specifics

Form:

flower

Size:

3-4 ft tall by 0.5-1 ft wide

Life Span:

Long-lived perennial

Flower Color:

white,purple,lavender

Fruit Color:

brown

Phenology:

Winter dormant. Blooms in spring. Fruits ripen by summer.

Noted For:

Showy Flowers

Landscaping

Recommended Uses:

Moist wildflower garden. Sometimes grown under the drain for an air conditioner. Excellent as a wetland edge flower.

Considerations:

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Availability:

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Propagation:

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Light:

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Moisture Tolerance:

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

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Usually moist, occasional inundation -to- Somewhat moist, no flooding

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

Soil pH:

acidic

Suitable to Grow In:

8A,8B,9A,9B

Ecology

Wildlife:

Pollinators

Attracts bees esp. bumblebees.

Native Habitats:

Marshes, wet prairie, dome swamps, riverine swamps in openings.

Comments:

Ethnobotany:

General Comments:

This iris and I. hexagona were considered to be a single species until recently.  I. savannarum is the most common iris species in Florida.