[3] The range of this subspecies spans from Vancouver Island and the Olympic Mountains in alpine to subalpine habitat to the lowland prairies of the South Puget Sound.

At this time, the Puget blue has not yet been designated endangered or threatened by the federal government, but it is a candidate subspecies for restoration in the state of Washington.

Scotch broom out-competes the host plants of this butterfly subspecies and as a nitrogen fixer it alters the natural nutrient balance in the soils.

Land management techniques used to maintain prairies such as controlled burns, can either help or hurt populations of native butterflies.

If timed correctly controlled burns can greatly increase that year's lupine crop, giving the Puget blue a better chance of success.