Gerald Darby Iris

Shipping begins the week of March 20th, 2023 Learn More…
Product is Out of Stock
Out of stock


‘Gerald Darby’ Iris pairs stunning foliage and vivid blooms for unmatched color in the garden. A painterly purple tint adds a striking contrast to emerging foliage, fading away to green in summer. Showy blue-violet flowers are held on dark purple stems, blooming early to mid-spring. This native hybrid Iris thrives in wet soil, so plant it in a water garden, bog garden, or let it naturalize along the edge of a stream or pond. (Iris x robusta)
Zones 4 - 9
Deer Resistant
Multiplies / Naturalizes
Good For Cut Flowers
Light Requirements
Half Sun / Half Shade
Morning Sun & Afternoon Shade
Mature Height 24-36" tall , 18-30" wide
Bloom TimeEarly to mid spring

USDA Hardiness Planting Zones

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).

Find Your Planting Zone:

Plant Information
‘Gerald Darby’ Iris begins its spring performance with a flush of sword-shaped foliage and vibrant ultraviolet blooms. ‘Gerald Darby’ is a hybrid produced by crossing two marginal aquatic iris species native to eastern North America, Iris versicolor and Iris virginica. 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 SKUsAM020516
AM020376 (Bag of 3) - Out of stock.
AM020377 (Bag of 12) - Out of stock.
Common Name
Gerald Darby Iris
Botanical Name
Iris x robusta Gerald Darby
4, 5, 6, 7, 8, 9
Light Requirements
Half Sun / Half Shade, Morning Sun & Afternoon Shade
Flower Color
Blue, Purple
Mature Height
24-36" tall
Mature Spread
18-30" wide
Bloom Time
Early to mid spring
Ships As
Bare Root
Flush of indigo purple at the base of bright green leaves in spring
Soil Type
Loamy Soil, Sandy Soil, Acidic Soil
Soil Moisture
Moist / Wet
Deer Resistant, Native, Multiplies / Naturalizes, Good For Cut Flowers
Planting Time
Spring / Summer
Neonicotinoid Free
Poisonous or Toxic to Animals
Rhizomes may be poisonous
Ships to Hawaii, Alaska & Canada
ZoneShipping Status
Zone 2Shipping begins the week of May 8th, 2023
Zone 3Shipping begins the week of May 8th, 2023
Zone 4Shipping begins the week of May 8th, 2023
Zone 5Shipping begins the week of May 1st, 2023
Zone 6Shipping begins the week of April 17th, 2023
Zone 7Shipping begins the week of April 3rd, 2023
Zone 8Shipping begins the week of March 27th, 2023
Zone 9Shipping begins the week of March 20th, 2023
Zone 10Shipping begins the week of March 20th, 2023

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
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
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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