Photo by Melody

PlantFiles: Dwarf Lake Iris
Iris lacustris

Family: Iridaceae (eye-rid-AY-see-ee) (Info)
Genus: Iris (EYE-ris) (Info)
Species: lacustris (lak-US-triss) (Info)

» View all varieties of Iris

4 members have or want this plant for trade.


under 6 in. (15 cm)

Unknown - Tell us

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)

Sun Exposure:
Sun to Partial Shade
Light Shade
Partial to Full Shade

Unknown - Tell us

Bloom Color:

Bloom Time:
Early (E)

Unknown - Tell us

Other details:
This plant may be considered a protected species; check before digging or gathering seeds

Soil pH requirements:
Unknown - Tell us

Patent Information:
Unknown - Tell us

Propagation Methods:
Unknown - Tell us

Seed Collecting:
Unknown - Tell us

Awards (if applicable):
Unknown - Tell us

Click thumbnail
to view:

By northeastwisc
Thumbnail #1 of Iris lacustris by northeastwisc

By northeastwisc
Thumbnail #2 of Iris lacustris by northeastwisc


1 positive
1 neutral
No negatives

Gardeners' Notes:

Positive jrtinker On Aug 6, 2013, jrtinker from Palmer, AK (Zone 3b) wrote:

I grew this plant from seed acquired from the NARGS Seed Exchange. It bloomed the second year and has survived seven Alaskan winters so far. It is a charming, early bloomer that has tolerated full sun and surprisingly dry conditions.

Neutral hello85 On Jun 3, 2006, hello85 from Erie, MI (Zone 6a) wrote:

The only place this plant can be found (natively growing) in the world is around the northern inside borders of Lake Michigan and Lake Huron.


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

Palmer, Alaska
Morris, Connecticut

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