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Nepeta grandiflora 'Blue Danube' (Catmint 'Blue Danube')

Beginner
skill rating
1 hour care
per year
0.5m
Max height
0.4m
Max spread
2-5 years
To maturity

Plant details

Botanical name

Nepeta grandiflora 'Blue Danube'

Other names

Catmint 'Blue Danube'

Genus

Nepeta Nepeta

Variety or Cultivar

'Blue Danube' _ 'Blue Danube' is a compact, upright, herbaceous perennial with aromatic, softly hairy, ovate, scalloped, grey-green leaves and terminal spikes of whorled, tubular, purple to purple-blue flowers from throughout summer.


Nepeta grandiflora 'Blue Danube' is: Deciduous

Fragrance

The leaves have a sweet fragrance when crushed.

Habit

Upright, Compact

Flower

Purple, Blue in Summer

Foliage

Grey-green in Spring; Grey-green in Autumn

How to care

Watch out for

Specific pests

Slugs Slugs

Powdery mildew Powdery mildew

General care

Pruning

Cut back after flowering to maintain a compact shape and to encourage a second flowering.

Propagation methods

Stem tip cuttings, Semi-ripe cuttings, Division


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Where to grow

Nepeta grandiflora 'Blue Danube' (Catmint 'Blue Danube') will reach a height of 0.5m and a spread of 0.4m after 2-5 years.

Suggested uses

Wallside and trellises, Rock, Gravel, Cottage/Informal, Coastal, City, Beds and borders

Cultivation

Grow in well-drained soil in full sun.

Soil type

Chalky, Loamy, Sandy

Soil drainage

Well-drained

Soil pH

Acid, Alkaline, Neutral

Light

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

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

Botanical name

Nepeta grandiflora 'Blue Danube'

Other names

Catmint 'Blue Danube'

Genus

Nepeta Nepeta

Variety or Cultivar

'Blue Danube' _ 'Blue Danube' is a compact, upright, herbaceous perennial with aromatic, softly hairy, ovate, scalloped, grey-green leaves and terminal spikes of whorled, tubular, purple to purple-blue flowers from throughout summer.

Native to

Garden origin

Foliage

Deciduous

Fragrance

The leaves have a sweet fragrance when crushed.

Habit

Upright, Compact


Colour

Flower

Purple, Blue in Summer

Foliage

Grey-green in Spring; Grey-green in Autumn


How to care

Watch out for

Specific pests

Slugs

Specific diseases

Powdery mildew

General care

Pruning

Cut back after flowering to maintain a compact shape and to encourage a second flowering.

Propagation methods

Stem tip cuttings, Semi-ripe cuttings, Division


Monthly care advice


Where to grow

Nepeta grandiflora 'Blue Danube' (Catmint 'Blue Danube') will reach a height of 0.5m and a spread of 0.4m after 2-5 years.

Suggested uses

Wallside and trellises, Rock, Gravel, Cottage/Informal, Coastal, City, Beds and borders

Cultivation

Grow in well-drained soil in full sun.

Soil type

Chalky, Loamy, Sandy

Soil drainage

Well-drained

Soil pH

Acid, Alkaline, Neutral

Light

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, Zone 5, Zone 4

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

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