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Iris missouriensis Rocky Mountain iris

Previous scientific name(s): Iris longipetala, Iris missouriensis var. arizonica, Iris missouriensis var. pelogonus, Iris pariensis, Iris tolmiea

Moderate to high moisture requirement; full sun. Large pale blue to blue-violet flowers bloom May to September along river banks or open sandy areas. An attractive perennial species recommended for use where moisture is plentiful.

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Species Attributes

Height:

8 - 20 in.

Life Form:

Perennial

Native or Introduced:

Native

Season:

Sun & Shade Tolerance:

granite seed sun and shade tolerance icon

Elevation:

ft.

Precipitation:

Moderate - High - Wetland Adapted

Soil Texture
Coarse:

Marginal

Moderately Coarse:

Average

Medium:

Best

Moderately Fine:

Best

Fine:

Marginal

Soil pH
Acidic:

Not Adapted

Neutral:

Best

Basic:

Marginal

Seeding Rate:

20 - 30 PLS lbs/Acre

Pure Seed per Bushel:

48.90 lbs.

Seeds per Pound:

21,000

Germination Time:

Days

Blooming Season:

Spring Summer

Mycorrhizal Dependent:

Yes

Bloom Color:

Blue/Purple

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