Birch-leaf Spirea
Spiraea betulifolia
Rosaceae · broadleaf deciduous shrub · native
Last updated
This profile synthesizes data from multiple published sources. Expert field review is in progress.
Birch-leaf spirea, also called white spirea or shiny-leaf spirea, is a low-growing, deciduous shrub native to western North America. Growing 2-4 feet tall, it produces small, birch-like leaves and flat clusters of white or pinkish flowers appearing in late spring to early summer.
This species is extremely cold-hardy to zones 2-8 and thrives in full sun to part shade with well-drained soil and moderate moisture. It spreads via stolons and self-seeding, making it useful for borders, massing, and erosion control. The plant is fast-growing and low-maintenance once established.
Quick Facts
Phenological Calendar
| Stage | Typical Window |
|---|---|
| Bud break BBCH 07 | Feb 15-Mar 15 |
| Leaf emergence BBCH 11 | Mar 1-Apr 1 |
| Bloom start BBCH 61 | Jun 1-Jun 30 |
| Bloom end / petal fall BBCH 69 | Jun 15-Jul 15 |
| Fruit/seed development BBCH 71 | Jun 1-Aug 31 |
| Fruit/seed maturity BBCH 85 | Sep 1-Nov 30 |
| Leaf drop BBCH 93 | Oct 15-Nov 30 |
| Dormancy BBCH 97 | Nov 15-Feb 28 |