Rose

Spiraea densiflora

Rosaceae · broadleaf deciduous shrub · introduced

Last updated

Rose meadowsweet, also called mountain spirea or subalpine spirea, is a deciduous shrub native to high elevations of the western mountains. Growing 2-4 feet tall, it produces narrow leaves and dense, flat-topped clusters of bright pink to rose flowers appearing in mid- to late summer.

This species is extremely cold-hardy to zones 2-6 and thrives in full sun to light shade with well-drained soil and moderate moisture. It spreads via rhizomes and self-seeding and is useful for mountain gardens and native plant landscapes. The plant attracts bees and butterflies.

Watch for this season

Primary Infection

Spring New Growth - Early Infection Window

RustHigh

Aecial Stage (Alternate Host)

Spring Emergence / Primary Infection

+ 4 more — see full disease and pest lists below

Diseases: Regionally Documented (11)

Pests: Regionally Documented (15)

Data Maturity
Structured Multiple sources. Expert review underway.