Dutch Iris
Iris x hollandica 'Delft Blue'

Family: Iridaceae (eye-rid-AY-see-ee) (Info)
Genus: Iris (EYE-ris) (Info)
Species: x hollandica (hol-LAN-dee-kuh) (Info)
Cultivar: Delft Blue
» View all varieties of Iris

Class:

Unknown - Tell us

Height:

6-12 in. (15-30 cm)

12-18 in. (30-45 cm)

Spacing:

3-6 in. (7-15 cm)

Hardiness:

USDA Zone 3a: to -39.9 C (-40 F)

USDA Zone 3b: to -37.2 C (-35 F)

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)

Sun Exposure:

Full Sun

Sun to Partial Shade

Danger:

Unknown - Tell us

Bloom Color:

Medium Blue

Dark Blue

White/Near White

Bloom Time:

Extra early (EE)

Midseason (M)

Foliage:

Herbaceous

Other details:

Average Water Needs; Water regularly; do not overwater

Flowers are good for cutting

Soil pH requirements:

Unknown - Tell us

Patent Information:

Unknown - Tell us

Propagation Methods:

By dividing rhizomes, tubers, corms or bulbs (including offsets)

Seed Collecting:

Unknown - Tell us

Awards (if applicable):

Unknown - Tell us

Regional

This plant has been said to grow in the following regions:

Cottondale, Alabama

Jacksonville, Florida

Hahira, Georgia

Chicago, Illinois

Charleston, South Carolina

Vancouver, Washington

show all

Gardeners' Notes:

3
positives
0
neutrals
0
negatives
RatingContent
Positive

On Mar 25, 2009, graceful_garden from Hahira, GA (Zone 8b) wrote:

Gorgeous flowers, and they come back reliably with little care. I add bulb fertilizer once per year.

Positive

On Mar 31, 2005, JaxFlaGardener from Jacksonville, FL (Zone 8b) wrote:

This is my first year of growing this iris. I am VERY pleased with the color! Perfect for my bed of blue and white flowers. I will add a lot more as time and finances allow.

Positive

On Mar 30, 2005, DreamOfSpring from Outer Banks, NC (Zone 9a) wrote:

Described as having the same color as that of Delft Blue pottery. Incredibly, it really does. Mine look exactly like those shown in vendor photos.

However, flowers seem to fade much faster than other Dutch Iris varieties in my garden; seem to be easily damaged by heavy rains, etc.