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Buddleja alternifolia (Alternate-leaved butterfly bush)

Beginner
skill rating
2 hours care
per year
4m
Max height
4m
Max spread
10-20 years
To maturity

Plant details

Botanical name

Buddleja alternifolia

Other names

Alternate-leaved butterfly bush, Buddleia alternifolia, Buddlea alternifolia

Genus

Buddleja Buddleja

Species

B. alternifolia - B. alternifolia is a large and fast-growing deciduous shrub, with arching branches with grey-green leaves and panicles of sweetly scented lilac-purple flowers.

Buddleia are nectar rich plants, which encourage benefical wildlife, such as ladybirds, lacewings and hoverflies into the garden


Buddleja alternifolia is: Deciduous

Fragrance

The flowers are sweetly fragrant.

Habit

Arching, Branching, Bushy, Irregular

Awards

RHS AGM (Award of Garden Merit)

Flower

Blue, Purple in Summer

Foliage

Grey-green, White in Summer

How to care

Watch out for

Specific pests

Capsid bug , Caterpillars Capsid bug , Caterpillars

Mosaic virus Mosaic virus

General care

Pruning

The panicles turn brown, so deadhead as they fade to improve appearance.

Propagation methods

Semi-hardwood cuttings


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Where to grow

Buddleja alternifolia (Alternate-leaved butterfly bush) will reach a height of 4m and a spread of 4m after 10-20 years.

Suggested uses

Cottage/Informal, Drought Tolerant, Beds and borders, Low Maintenance, Resistant to pollution, Wildflower, Instant

Cultivation

Tolerates many situations, but grows best in a sunny, well-drained situation.

Soil type

Chalky, Clay, Loamy, Sandy (will tolerate most soil types)

Soil drainage

Moist but well-drained, Well-drained

Soil pH

Acid, Alkaline, Neutral

Light

Partial Shade, Full Sun

Aspect

South, East, West

Exposure

Exposed, Sheltered

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

Hardy (H4)

Companion plants

Botanical name

Buddleja alternifolia

Other names

Alternate-leaved butterfly bush, Buddleia alternifolia, Buddlea alternifolia

Genus

Buddleja Buddleja

Species

B. alternifolia - B. alternifolia is a large and fast-growing deciduous shrub, with arching branches with grey-green leaves and panicles of sweetly scented lilac-purple flowers.

Buddleia are nectar rich plants, which encourage benefical wildlife, such as ladybirds, lacewings and hoverflies into the garden

Foliage

Deciduous

Fragrance

The flowers are sweetly fragrant.

Habit

Arching, Branching, Bushy, Irregular

Awards

RHS AGM (Award of Garden Merit)


Colour

Flower

Blue, Purple in Summer

Foliage

Grey-green, White in Summer


How to care

Watch out for

Specific pests

Capsid bug , Caterpillars

Specific diseases

Mosaic virus

General care

Pruning

The panicles turn brown, so deadhead as they fade to improve appearance.

Propagation methods

Semi-hardwood cuttings


Monthly care advice


Where to grow

Buddleja alternifolia (Alternate-leaved butterfly bush) will reach a height of 4m and a spread of 4m after 10-20 years.

Suggested uses

Cottage/Informal, Drought Tolerant, Beds and borders, Low Maintenance, Resistant to pollution, Wildflower, Instant

Cultivation

Tolerates many situations, but grows best in a sunny, well-drained situation.

Soil type

Chalky, Clay, Loamy, Sandy (will tolerate most soil types)

Soil drainage

Moist but well-drained, Well-drained

Soil pH

Acid, Alkaline, Neutral

Light

Partial Shade, Full Sun

Aspect

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

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This plant likes... Garden match
Soil types: Chalky, Clay, Loamy, Sandy (will tolerate most soil types) 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: South, East, West Tell us...
Exposure: Exposed, Sheltered Tell us...
Hardiness: Hardy (H4) Tell us...

DISCUSS THIS PLANT

What shape to encourage for newly planted Buddlia alternifolia

I planted this beautiful buddlia last Sept. There are now several long arching stems growing from base. Should I stake these together ... train them against a fence ... trim all back except for… read more

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