Birch-leaf Spirea
Spiraea betulifolia
Rosaceae · broadleaf deciduous shrub · native
Last updated
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
Height
3 ft
Growth Rate
Moderate
Light
Part Shade
Soil
Wet Tolerant
Water
High
Hardiness
Zone Zones 4a–8b
Bloom Time
May to July
Origin
Pacific Northwest native
Watch for this season
Powdery MildewModerate
Spring Emergence / Primary Infection
AphidModerate
Spring Colonization
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 |
Diseases: Regionally Documented (2)
Pests: Regionally Documented (3)
Cultivars (1)
'Tor'
Common name: Tor Birchleaf Spirea; Mature height: 2–3 ft
Hardy to USDA Zone 4
Data Maturity Structured Multiple sources. Expert review underway.