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The gorgeous blooms of Blue Flag Iris are a delight in the spring garden. This robust native perennial’s brilliant blue-violet flowers open early to mid-spring atop sturdy stems, while the arching blue-green foliage adds texture. Watch for bumblebees and long-horned bees on the blooms, as well as the occasional butterfly or hummingbird. Plants can grow in standing water, and perform well in average to wet garden soil. (Iris versicolor)
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 Irises are native to marshes, swamps, wet meadows, and shorelines in the northeastern United States and Canada. Blue Flag Iris is a common addition to water gardens and water features, as it tolerates standing water up to 4 inches deep. Plants can also be grown in consistently moist garden soils in full sun to part shade. Plant in full sun to part shade, ideally with morning sun and afternoon shade. Plants need constantly moist soils and can be planted in up to 4 inches of standing water. Blooms open early to mid-spring and make long-lasting cut flowers. Plants can be trimmed back during the dormant season. Irises spread slowly by rhizomes to form dense clumps, and can be divided in early autumn. Wear gloves when handling rhizomes. Plants are deer and rabbit resistant, and toxic if consumed.
More Information
Associated SKUs
AM020515 AM020374 (Plant - 3" Pot) AM020375 (Bag of 12)
Common Name
Blue Flag Iris
Botanical Name
Iris versicolor
Zones
3, 4, 5, 6, 7, 8, 9
Light Requirements
Full Sun, Half Sun / Half Shade
Flower Color
Blue, Purple
Mature Height
24-30" tall
Mature Spread
24-30" wide
Bloom Time
Early to mid spring
Ships As
Bare Root
Soil Type
Loamy Soil, Sandy Soil, Acidic Soil
Soil Moisture
Moist / Wet
Advantages
Deer Resistant, Native, Multiplies / Naturalizes, Good For Cut Flowers
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. Some perennials are shipped as potted plants, some as perennial roots packed in peat. The ‘Plant Information’ section describes how that item will ship. All perennials and spring-planted bulbs are packaged to withstand shipping and are fully-guaranteed. Please open upon receipt and follow the instructions included.
Perennials and spring-planted bulbs are shipped at the proper planting time for your hardiness zone. Perennial and spring-planted bulb orders will arrive separately from seeds. If your order requires more than one shipment and all items are shipping to the same address, there is no additional shipping charge. 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.
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