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To determine if a plant is sufficiently cold hardy, the USDA created numbered zones indicating winter low
temperatures; the lower the zone number the colder the winter.
If the coldest winter temperature expected in your area is -15°F (zone 5) then any plants rated zones 3-5 will
survive the winter temperatures in your area.
If you live in very warm winter areas (zones 9-11) plants with zones 3-4 ratings are not recommended. The lack
of freezing winter temperatures do not provide a time for winter dormancy (rest).
Blue Flag is a real beauty, with classic violet-blue iris blooms on stalks growing from 2 to 3 feet. The flowers are up to 4" across, making it very showy for a wildflower. It's native from Canada down to Virginia, and west to Minnesota--in fact, sometimes whole wet meadows are covered with this late spring beauty, creating a spectacular sheet of shining blue. Blue Flag can be successfully grown wherever there is a strong winter freeze.
This treasured iris is not invasive in watery areas like its cousin, "Yellow Flag," so it's a perfect wildflower garden plant--as long as you have a wet spot in sun or shade.
A similar, but shorter species occurs farther south and is called "Southern Blue Flag."
As with all irises, growing them from seed is not difficult, but may take some time. The plant must create its bulky roots before it can bloom.
As soon as your order is placed you will receive a confirmation email. You will receive a second email the day your order ships telling you how it has been sent. Depending upon your order date, we may hold your shipment to combine it with other products on your order, if applicable. See our shipping information page for approximate ship dates and more detailed information. If you have any questions, please call Customer Service toll-free at (877) 309-7333 or contact us by email.
Shipping Rates
Our shipping rates are calculated based on our actual average shipping costs. We do not seek to profit from shipping fees, so rest assured that our shipping rates reflect an average of what it costs to get our guaranteed products safely to your door.
US Shipping Charges
Merchandise Total
Shipping Charges
Up to $19.99
$6.99
$20 to $34.99
$8.99
$35 to $49.99
$10.99
$50 to $74.99
$12.99
$75 to $99.99
$14.99
$100 and Over
$16.99
Canadian Shipping Charges
Merchandise
Shipping Charges
Up to $24.99
$14.95
$25 to $49.99
$19.95
$50 to $74.99
$24.95
$75 to $99.99
$29.95
$100 and Over
$39.95
If your order requires more than one shipment and all items are shipping to the same address, there is no additional shipping charge. If you have any questions, please call us at (877) 309-7333.
![](https://www.pinterest.com/pin/create/button/?url=https://www.americanmeadows.com/wildflower-seeds/native-rare-wildflower-seeds/blue-flag-iris-seeds&media=https://www.americanmeadows.com/media/catalog/product/i/r/iris_versicolor2_1.jpg&description=The magnificent "wild blue iris" you see in wet meadows & along streams all over the northeast & upper midwest. Perennial)
