Magnify glass

Spiraea nipponica Snowmound


Cascades of white flower clusters on arching branches

A low-growing shrub, Snowmound lives up to its name, producing clusters of white flowers that cover this ground-hugging plant through the summer months, contrasting with its glossy, blue-black leaves.


They need full sun to be at their best, so don't crowd with other plants. They spread right to the ground, making a striking statement at the front of the border or in a container.


They will thrive on their own in moist free-draining soil. Prune annually immediately after flowering to encourage new growth and maximise flowering. If overgrown it can be pruned back hard immediately after flowering.

This plant can be propagated from cuttings in the summer or by lifting and dividing in autumn or early spring.

Plant details

In depth plant information

Property Value
Plant type Ornamental shrub
Flower colour
Foliage colour
Typically available March - September
Season of interest Summer
Flowering June - August
Evergreen Yes
Plant height 150 cm - 250 cm
Plant width 150 cm - 250 cm
Fragrant flowers No
Attracts bees No
Attracts butterflies No
Plant height in 5 years 65 cm
Hardiness zone (?) H6

Will perform best in these conditions

Property Value
Soil type Chalk, Loam, Sand
Light exposure Full sun, Part shade
Soil drainage Well drained, Medium
Planting instructions

Water the plant in its pot thoroughly before planting – give it a good soaking. Prepare the area by digging a hole twice the size of the pot. Dig compost into the base of the hole. Remove the pot and position the plant in the hole, with the top of the rootball about level with the surrounding soil. Refill the planting hole with a mixture of garden soil and compost, firming as you go. Water in well and keep well watered during the plant's first year.

Planting site Flower border and beds, Cottage garden, Informal garden, Banks and slopes

Typically available

From March to September