Harlequin Blueflag

Iris versicolor

Native to:
Canada, Labrador, Prince Edward I., United States

📍 View on iNaturalist →

Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Iridaceae
Genus:
Iris
Species:
Iris versicolor
USDA Symbol:
IRVE2

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Geophyte
Height:
90 cm
Light Requirements:
Full Sun,Part Shade
Drought Tolerance:
Low
Bloom Months:
may,jun,jul
Bloom Colors:
blue, violet, purple

Wildlife Benefits

Bees:
★☆☆☆☆ Documented bee visitation (GBIF)
Butterflies & Moths:
★☆☆☆☆ Documented Lepidoptera association (GBIF)
Caterpillars:
★☆☆☆☆ Recorded caterpillar host plant (HOSTS Database)
Hummingbirds:
★☆☆☆☆ Documented hummingbird visits (GBIF)

Keystone Species Ranking

Caterpillar Keystone:
★★☆☆☆ Butterfly & moth species supported by this genus (NWF)

Host Plant for Caterpillars

Gypsy moth (Lymantria dispar)

Reported Fauna Sightings

Moths:Nessus sphinx (Amphion floridensis) Butterflies:Hobomok Skipper (Lon hobomok)

Garden & Ecology Notes

Wildlife Value:
bees, butterflies, hummingbirds
Deer Resistant:
Yes

Soil Requirements

Soil Type:
rich, moisture-retentive loamy soil
pH:
5.5 - 7.0 (slightly acidic to neutral)
Drainage:
tolerates poor drainage
Moisture:
consistently moist
Notes:
Thrives in wetland areas and along water bodies

Propagation & Germination

Stratification:
Cold/moist stratification required — 60–120 days
Germination Time:
30–180 days
Notes:
Germination can be slow and erratic. Seeds require cold-moist stratification and may take multiple seasons to germinate.

The above propagation data sourced from Claude AI

Pre-treatment: Cold-moist stratification for 30 days at 1–5°C (34–41°F).; then Cold-moist stratification for 60 days.

Notes: Seeds may require light for optimal germination.

Source: Claude AI

ORGHPS Germination Guide: Sow @ 20°C. Seed germinates within 3 months Requires light or the seed is very fine. Surface sow and expose to light. * sow fresh or soak old seed; prechill 4 weeks or place outdoors over winter and bring indoors once germinated to avoid temperature shock; transplant at 4 leaves

Source: Ontario Rock Garden & Hardy Plant Society