Taxonomy

Division:

Magnoliophyta | - Flowering plants

Family:

Iridaceae

Genus:

Iris

Species:

Iris delavayi

USDA Symbol:

IRDE2

Growth Characteristics

Height:

120 cm

Light Requirements:

Full Sun

Drought Tolerance:

Low

Bloom Months:

jun,jul

Bloom Colors:

blue, purple

Keystone Species Ranking

Caterpillar Keystone:

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

Garden & Ecology Notes

Wildlife Value:

bees, hummingbirds

Soil Requirements

Soil Type:

rich, well-drained loamy soil

pH:

5.5 - 7.5 (slightly acidic to neutral)

Drainage:

excellent drainage required

Moisture:

consistently moist

Notes:

prefers wetland or marshy areas

Propagation & Germination

Stratification:

Cold/moist stratification required — 60–90 days

Germination Time:

30–90 days

Notes:

Seeds benefit from cold stratification for 2-3 months; germination may be slow and erratic.