- Common Name: Tosa spiraea
- Synonyms: Spiraea nipponica Maxim. var. tosaensis misapplied
- Position: Full sun, Partial shade, North-facing, East-facing, South-facing, West-facing, Exposed, Sheltered
- Soil: Moist but well-drained, Well-drained, Chalk, Loam, Sand, Acid, Alkaline, Neutral
- Flowers: Summer
- Flower Colour: White
- Hardiness: H6 - Hardy in all of the UK and Northern Europe
- Habit: Deciduous, Bushy
- Height & Spread: 250cm × 250cm
A larger and slightly earlier-flowering Spiraea with rounded, dark green leaves and a spreading habit. It bears masses of small, white flowers from June to July.
Spiraea nipponica 'Snowmound'