Iris missouriensis

Rocky Mountain Iris, Western Blue Flag, Wild Blue Iris

In Stock: 0.904 lb (Total:0.904lb)
  • Iris missouriensis

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Buying options

0.9 lb


Germination test:
Cut (Full Seed)
Seeds per lb:
0.9 lb
Collected in:
Crop year:
Min. hardiness zone:
Item ID:

Growing Info

Scarification: Soak in water, let stand in water for 24 hours
Stratification: cold stratify for 30-60 days
Germination: sow seed 1/8" deep, tamp the soil, mulch the seed bed

This hardy flowering plant belongs to the family Iridaceae and is known for its beautiful light blue flowers with purple lines. Iris missouriensis is a rhizomatous perennial that grows 1-2 ft high. It has linear basal leaves that are similar in height to the flowering stems. The inflorescence usually consists of one or two flowers, but sometimes three or four. The sepals are light to dark blue and surround the smaller upright blue petals.
Some Plateau Indian tribes used the roots of Iris missouriensis to treat toothache, while the Navajo used it as an emetic. The Zuni apply a poultice of the chewed root to increase the strength of newborns and infants. However, this iris is considered a weed in some areas, particularly in agricultural California, as it is bitter and distasteful to livestock.
Despite its weed status, Iris missouriensis is widely cultivated in temperate regions. The plant requires moist or wet soil to thrive. It is in flower from May to June and is pollinated by insects. Overall, Iris missouriensis is a stunning addition to any garden or landscape with its beautiful blue flowers and hardy nature.

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