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Spiraea thunbergii (Thunberg spiraea)

Beginner
skill rating
1 hour care
per year
1.5m
Max height
1.5m
Max spread
10-20 years
To maturity

Plant details

Botanical name

Spiraea thunbergii

Other names

Thunberg spiraea

Genus

Spiraea Spiraea

Species

S. thunbergii - S. thunbergii is a small, long-lived shrub with thin, flexible stems bearing a profusion of small white flowers in early spring.


Spiraea thunbergii is: Deciduous

Habit

Rounded

Awards

RHS AGM (Award of Garden Merit)

Flower

White in Spring; White in Summer

Foliage

Green in Spring; Green in Summer

How to care

Watch out for

Pests

Generally pest free.

Diseases

Generally disease free.

General care

Pruning

Will respond well to hard pruning after flowering to restore shape.

Propagation methods

Softwood cuttings


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Where to grow

Spiraea thunbergii (Thunberg spiraea) will reach a height of 1.5m and a spread of 1.5m after 10-20 years.

Suggested uses

Banks and Slopes, Cottage/Informal, Beds and borders, Low Maintenance

Cultivation

Easy to grow in any soil so long as it is moist.

Soil type

Chalky, Loamy, Sandy

Soil drainage

Moist but well-drained, Well-drained

Soil pH

Acid, Alkaline, Neutral

Light

Partial Shade, Full Sun

Aspect

North, South, East, West

Exposure

Exposed, Sheltered

UK hardiness Note: We are working to update our ratings. Thanks for your patience.

Hardy (H4)

Companion plants

We do not currently have companion plants added for this plant.

Botanical name

Spiraea thunbergii

Other names

Thunberg spiraea

Genus

Spiraea Spiraea

Species

S. thunbergii - S. thunbergii is a small, long-lived shrub with thin, flexible stems bearing a profusion of small white flowers in early spring.

Foliage

Deciduous

Habit

Rounded

Awards

RHS AGM (Award of Garden Merit)


Colour

Flower

White in Spring; White in Summer

Foliage

Green in Spring; Green in Summer


How to care

Watch out for

Pests

Generally pest free.

Diseases

Generally disease free.

General care

Pruning

Will respond well to hard pruning after flowering to restore shape.

Propagation methods

Softwood cuttings


Monthly care advice


Where to grow

Spiraea thunbergii (Thunberg spiraea) will reach a height of 1.5m and a spread of 1.5m after 10-20 years.

Suggested uses

Banks and Slopes, Cottage/Informal, Beds and borders, Low Maintenance

Cultivation

Easy to grow in any soil so long as it is moist.

Soil type

Chalky, Loamy, Sandy

Soil drainage

Moist but well-drained, Well-drained

Soil pH

Acid, Alkaline, Neutral

Light

Partial Shade, Full Sun

Aspect

North, South, East, West

Exposure

Exposed, Sheltered

UK hardiness Note: We are working to update our ratings. Thanks for your patience.

Hardy (H4)

USDA zones

Zone 9, Zone 8, Zone 7, Zone 6, Zone 5, Zone 4

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This plant likes... Garden match
Soil types: Chalky, Loamy, Sandy Tell us...
Soil drainage: Moist but well-drained, Well-drained Tell us...
Soil pH: Acid, Alkaline, Neutral Tell us...
Light: Partial Shade, Full Sun Tell us...
Aspect: North, South, East, West Tell us...
Exposure: Exposed, Sheltered Tell us...
Hardiness: Hardy (H4) Tell us...

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