Product Description
Iris pseudacorus – Yellow Flag Iris
Native/Non-native – Non-Native
Hardiness Zone – 5-9
Sun – Full sun to partial shade
Moisture – Wet
Size – 3-5′ height x 2-3′ spread
Comments
* Large yellow flowers
* Use in maintained storm water and wastewater treatment
* Can be invasive if used in uncontrolled applications
Description
Spacing:
36-48 in. (90-120 cm)
Hardiness:
USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
Sun Exposure:
Full Sun
Sun to Partial Shade
Danger:
Parts of plant are poisonous if ingested
Handling plant may cause skin irritation or allergic reaction
Bloom Color:
Bright Yellow
Bloom Time:
Late Midseason (MLa)
Foliage:
Herbaceous
Smooth-Textured
Other details:
Very high moisture needs; suitable for bogs and water gardens
May be a noxious weed or invasive
Soil pH requirements:
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
Patent Information:
Non-patented
Propagation Methods:
By dividing rhizomes, tubers, corms or bulbs (including offsets)
Seed Collecting:
Allow pods to dry on plant; break open to collect seeds
Awards (if applicable):
Regional
This plant has been said to grow in the following regions:
, (2 reports)
Auburn, Alabama
Piedmont, Alabama
Tuscaloosa, Alabama
Tuskegee, Alabama
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