Photo by Melody

PlantFiles: Dutch Iris
Iris x hollandica 'Apollo'

Family: Iridaceae (eye-rid-AY-see-ee) (Info)
Genus: Iris (EYE-ris) (Info)
Species: x hollandica (hol-LAN-dee-kuh) (Info)
Cultivar: Apollo
Additional cultivar information: (PP4279)
Hybridized by Hommes; Year of Registration or Introduction: 1977

» View all varieties of Iris

4 vendors have this plant for sale.

One member has or wants this plant for trade.


6-12 in. (15-30 cm)

6-9 in. (15-22 cm)

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)
USDA Zone 9b: to -3.8 C (25 F)

Sun Exposure:
Full Sun
Sun to Partial Shade

Parts of plant are poisonous if ingested

Bloom Color:
White/Near White

Bloom Time:
Midseason (M)
Late Midseason (MLa)


Other details:
Average Water Needs; Water regularly; do not overwater
Flowers are good for cutting

Soil pH requirements:
6.1 to 6.5 (mildly acidic)

Patent Information:
Patent expired

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

Seed Collecting:
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

Awards (if applicable):
Unknown - Tell us

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By darius
Thumbnail #1 of Iris x hollandica by darius

By darius
Thumbnail #2 of Iris x hollandica by darius

By amarantha00
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By jg48650
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By CCBaker
Thumbnail #5 of Iris x hollandica by CCBaker


2 positives
1 neutral
No negatives

Gardeners' Notes:

Positive CCBaker On Apr 29, 2012, CCBaker from Milford, CT (Zone 6b) wrote:

I planted 25 of these bulbs from White Flower Farm and they all came up. One's bloomed already (end of April in Milford, CT), and the others have buds just about to open. They are so bright, and perfect timing now that the daffodils/tulips are winding down.

Neutral Joan On Sep 2, 2009, Joan from Belfield, ND (Zone 4a) wrote:

Editor's Note

Plant Patent number 4279 has expired
Positive darius On Mar 11, 2006, darius from So.App.Mtns.
United States (Zone 5b) wrote:

I loved this dutch iris. Such a bright spot of color in Spring!


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

San Bernardino, California
Milford, Connecticut
Warsaw, Indiana
Pinconning, Michigan
Norristown, Pennsylvania

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