In Stock
Rocky Mountain Iris
Iris missouriensis
Rocky Mountain Iris
In stock · from $14.99
Pale to dark, lilac-purple and have yellow bases. The grayish-green leaves are relatively broad. Large, delicate, pale blue or blue-violet flowers, often with purple veins. Does best with some afternoon shade in hot summer locations. Tolerates some wet soils and requiring non-drying soils through the bloom period.
Specifying this plant? Save it to a project in the shop, or match a whole plant schedule with Plant List Matcher.
Plant facts
Sizes and prices
Retail prices; trade pricing for wholesale accounts. Availability updates hourly; stock last changed 2026-10-23.
Good to know
- Attracts pollinators.
- Suitable for Utah Lake secondary water systems.
- Part of our native plants collection, a specialty of ours.
Quick answers
How big does Rocky Mountain Iris get?
About 18-24" tall and 12" wide at maturity.
How much sun does Rocky Mountain Iris need?
Full Sun to Part Shade (3 to 6+ hours Sun).
How much water does Rocky Mountain Iris need?
Heavy water use.
Will Rocky Mountain Iris grow in Utah and the Intermountain West?
It is rated hardy to USDA zone 3, so it suits sites in zone 3 or warmer, which covers most of the region. The Salt Lake Valley floor is mostly zone 7; benches, mountain valleys and high plains in Utah, Idaho, Montana, Colorado and Wyoming are colder, often zones 3–6, so check the zone for your site.
Where can I buy Rocky Mountain Iris in Utah?
Progressive Plants in Copperton, Utah has it in stock, from $14.99. Homeowners can order online for pickup at the farm or local delivery; landscape contractors can have it shipped across Utah, Idaho, Montana, Colorado, Wyoming and Nevada.
Can landscape contractors buy Rocky Mountain Iris wholesale?
Yes. Landscape contractors and architects with a Progressive Plants wholesale account get trade pricing, bulk ordering and shipping across Utah, Idaho, Montana, Colorado, Wyoming and Nevada on our own trucks or by freight ($1,500 minimum outside our local delivery area). Apply at progressiveplants.com/wholesaleapp.html or call 801-565-7333.
Find similar plants
PerennialsPlants that Attract PollinatorsPlants for Secondary WaterNative Plants