Mountain Bluet or Perennial Cornflower

Centaurea montana

Asteraceae · perennial · introduced

Last updated March 8, 2026

Data Coverage 2 of 6 dimensions

Site Data

Threats

Cultivars

Phenology

GDD Thresholds

Puget Sound

Quick Facts

Bloom Time

May to June

Diseases (3)

Peronospora sparsa Downy Mildew Podosphaera aphanis var. aphanis Powdery Mildew Thekopsora minima and Naohidemyces vaccinii Rust

Cultivars (1)

''Balcentsirl''

Silver Swirl Snowflake Dusty Miller