| Scientific Name: | Spiraea thunbergii |
| Common Name: | Thunberg spirea, baby's breath spirea |
| Family Name: | Rosaceae |
| Origin: | S.E. Asia / Japan / China |
| Hardiness Zone: | Zone 3: (-40 to -34 °C) |
| Plant Type: | Shrub - deciduous |
| Mature Size: | 1.3 - 2.0m x 1.5 - 2.0m (height x width) |
| Habit: | Arching, Dense |
| Form: | Vase |
| Texture: | Fine |
| Landscape Uses: | Hedge row, Mixed shrub border |
| Exposure: | Full sun, Part sun/part shade |
| Soil or Media: | Humus rich, Well-drained |
| Leaves: | Simple, Alternate, Soft flexible, Glabrous, Falcate, Lanceolate, Serrate |
| Flowers: | Cyme, White, Mar-Apr-May |
| Fruit: | Aggregate fruit, Follicle, Brown, Jun-Jul |
| Key ID Features: | |
| Leaves willow-like arrow, margins sparsely serrated, most 3-5cm long x ~5mm wide; flowers ~1cm wide, 5 oval petals, white. Winter ID: twigs very fine, pubescent; buds alternate, ovoid, leaf scars crescent shaped. | |