Keep soil consistently moist for best performance, especially during establishment. Divide clumps every few years if they become crowded, and remove old foliage in late winter or early spring.
Southern Blue Flag Iris
Iris virginica var. shrevei
$29.99
$34.99
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Ships the week of September 21.
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3-Pack
3 Plants
$10.00/plant
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6 Plants
$9.17/plant
32-Plant Tray
32 Plants
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About this Plant
Southern Blue Flag Iris, also called Shreve’s Iris, brings bold structure and elegant color to wet garden spaces. Its upright, sword-shaped leaves add strong vertical texture, while the blue-violet flowers bloom in late spring to early summer, creating a refined focal point along pond edges, rain gardens, and moist borders.
This native iris thrives in consistently moist to wet soils and performs well in full sun to partial shade. Its blooms attract bees, hummingbirds, and other pollinators, while its clumping habit helps stabilize soil in low-lying or water-adjacent areas. It’s an excellent choice for gardeners looking to turn a soggy spot into something beautiful and ecologically useful.
Why Choose Southern Blue Flag Iris?
- Beautiful blue-violet blooms in late spring to early summer
- Excellent for rain gardens, pond edges, and wet soils
- Sword-like foliage adds vertical structure
- Supports bees, hummingbirds, and other pollinators
- Helps stabilize soil in moist or low-lying areas
Maintenance Tips
- Best in fertile, moist to wet soils; does not tolerate drought well.
- Divide clumps every 3-4 years in early fall to maintain vigor and increase planting stock.
- Protect from strong winds and monitor for iris borer and root rot, which can be a concern in overly wet conditions.
Details
Soil Types
-
Soil Moisture
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Sun Exposure
-
Hardiness Zone
USDA 4–9
Plant Type
Flower
Mature Height
-
Mature Width
-
Bloom Color
Blue/Lavender
Bloom Time
-
Root Type
Rhizome
Southern Blue Flag Iris
$29.99$34.99
Ecological Benefits
Attracts Hummingbirds
Nectar-rich blooms that draw hummingbirds to your garden.
Attracts Pollinators
Provides nectar and pollen for bees and other pollinators.
Attracts Butterflies
A nectar source that draws butterflies throughout the season.
Soil Stabilizing
Deep roots help prevent erosion and stabilize soil.
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“I've never planted anything in my life. And this was actually quite fun.” - Steve
