Invasive Species Council of British Columbia
Grow Me Instead

Rocky mountain iris

Iris missouriensis

About This Species

Zone 3a BC Native

Grow me instead of Flowering rush

This native iris has attractive sword-like foliage and delicate, large, deep violet-blue flowers. It is tolerant of medium to wet soils and grows 30 – 60 cm tall. It flowers from May to June. This iris is quite low maintenance and does not need a lot of special care.

When selecting non-invasive plants for your garden, be sure to look for those that are suitable for your location, including moisture requirements, hardiness zone, and avoidance of known bear attractants among other factors.

Plant Special Features

  • Fire smart
  • Bear smart
  • Pollinator friendly

Moisture Requirements


Consistently moist or wet conditions