Yellow Flag Iris is a clumping marginal perennial that spreads with rhizomes. the long sword-like grey-green foliage fans upwards. Sturdy branching stalks that grow from the center of the plant are topped by bright yellow flowers with a darker yellow center that blooms from late spring into summer, attracting bees. Grows best in standing water with full sun and rich, slightly acidic water-retentive soils. An aggressive spreader.
Do Not plant near natural waterways or plant in midwestern states- It can be a noxious weed.
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Type: |
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Origins: |
Europe, N. Africa and Central Asia |
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Height: |
2' - 5' |
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Spread: |
2' - 2.5' |
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Spacing: |
2’ |
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USDA Hardiness Zone: |
5 - 9 |
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Culture: |
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Bloom Color: |
Yellow |
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Season of Interest: |
MAINTENANCE NEEDS: Low Maintenance. Water regularly, then occasionally once established. Do Not plant near natural waterways or plant in midwestern states- It can be a noxious weed.
LANDSCAPE USES: Accents or Group Plantings, Borders, Woodland Gardens, Water Gardens, Foundation Plantings, and Containers.
COMPANION PLANTS: Sedge, Joe Pye Weed, Turtlehead
IMAGE: Jonathan Billinger, Yellow Flag Iris, Iris pseudacorus - geograph.org.uk - 822830, CC BY-SA 2.0
*As plants have ranges in appearance they may not appear as the images shown.
