Native Plant Database

Header Photo: Mervin Wallace

Southern Blue Flag

Iris virginica var. shrevei
Plant Type: Herbaceous Perennials
Native Environment: Wetland, Stream Edge
Season of Interest: Mid (May - June)
Main Color: Blue, Purple
Fall Color:
Hardy From Zone:
Hardy To Zone:

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Hardiness Zones

Midwest map of zones 5 (north), 6, and 7 (south)

as defined by the USDA Plant Hardiness Zone Map; (hardiness zones are not recorded for all Grow Native! plants)
Sun Exposure 
Full Sun
Soil
Moisture
Moderate, High, Wet
Nature Attracting
Pollinators/Beneficial Insects
Wildlife Benefit
Food/Pollinators
Animal
Resistance
Size

Height:

15 to
40
inches

Spread:

18 to
24
inches
Size
Height: 15 to
40
inches
Spread: 18 to
24
inches
Size
Height: 15 to
40
inches
Spread: 18 to
24
inches
Typical Landscape Use
Excellent in swales and swampy ground. Perfect along the edge of ponds.
Establishment and Care Instructions
Grow in full sun in moderate to wet soil.
Special Features
Special Usage
Rainscaping, Fresh Cut Flower
Basic Description

This adaptable iris has fragrant, blue violet flowers with falls crested in yellow and white. Narrow, bright green leaves often lie on the ground in late fall and winter.

Where Should I Start?

Check out the Grow Native! Committee’s Top Ten picks of native plants for a particular purpose.

What’s the Next Step?

Picked out your plants? View our Resource Guide of garden centers, seed sources, landscapers, education resources, and more!

Where Can I Find This Plant in Nature?

Learn about the Native Environment(s) inhabited by the plants in this database.

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