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Nepeta 'Six Hills Giant' (Catmint 'Six Hills Giant')

Beginner
skill rating
1 hour care
per year
0.9m
Max height
0.6m
Max spread
2-5 years
To maturity

Plant details

Botanical name

Nepeta 'Six Hills Giant'

Other names

Catmint 'Six Hills Giant', Nepeta x faassenii 'Six Hills Giant', Nepeta x gigantea

Genus

Nepeta Nepeta

Variety or Cultivar

'Six Hills Giant' _ 'Six Hills Giant' is a vigorous, upright, bushy, clump-forming, deciduous perennial with aromatic, narrowly ovate, toothed, hairy, grey-green leaves and whorled, spike-like cymes of lavender-blue flowers in summer.


Nepeta 'Six Hills Giant' is: Deciduous

Fragrance

The leaves have a sweet aromatic fragrance when crushed.

Habit

Bushy, Clump-forming, Upright

Flower

Lavender in Summer

Foliage

Grey-green in Spring; Grey-green in Summer; Grey-green in Autumn

How to care

Watch out for

Specific pests

Leafhoppers Leafhoppers

Powdery mildew Powdery mildew

General care

Pruning

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

Propagation methods

Division, Softwood cuttings


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Where to grow

Nepeta 'Six Hills Giant' (Catmint 'Six Hills Giant') will reach a height of 0.9m and a spread of 0.6m after 2-5 years.

Suggested uses

Cottage/Informal, Drought Tolerant, Beds and borders, Gravel, Wildlife

Cultivation

Grows in any well-drained soil in sun or partial shade. May need support, particularly in more fertile soil.

Soil type

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

Soil drainage

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

Nepeta 'Six Hills Giant'

Other names

Catmint 'Six Hills Giant', Nepeta x faassenii 'Six Hills Giant', Nepeta x gigantea

Genus

Nepeta Nepeta

Variety or Cultivar

'Six Hills Giant' _ 'Six Hills Giant' is a vigorous, upright, bushy, clump-forming, deciduous perennial with aromatic, narrowly ovate, toothed, hairy, grey-green leaves and whorled, spike-like cymes of lavender-blue flowers in summer.

Foliage

Deciduous

Fragrance

The leaves have a sweet aromatic fragrance when crushed.

Habit

Bushy, Clump-forming, Upright


Colour

Flower

Lavender in Summer

Foliage

Grey-green in Spring; Grey-green in Summer; Grey-green in Autumn


How to care

Watch out for

Specific pests

Leafhoppers

Specific diseases

Powdery mildew

General care

Pruning

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

Propagation methods

Division, Softwood cuttings


Monthly care advice


Where to grow

Nepeta 'Six Hills Giant' (Catmint 'Six Hills Giant') will reach a height of 0.9m and a spread of 0.6m after 2-5 years.

Suggested uses

Cottage/Informal, Drought Tolerant, Beds and borders, Gravel, Wildlife

Cultivation

Grows in any well-drained soil in sun or partial shade. May need support, particularly in more fertile soil.

Soil type

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

Soil drainage

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 10, Zone 9, Zone 8, Zone 7, Zone 6, Zone 5, Zone 4, Zone 3

Defra's Risk register #1

Plant name

Nepeta 'Six Hills Giant' (Catmint 'Six Hills Giant')

Common pest name

tomato thrips

Scientific pest name

Ceratothripoides brunneus

Type

Insect

Current status in UK

Absent

Likelihood to spread to UK (1 is very low - 5 is very high)

3

Impact (1 is very low - 5 is very high)

3

General biosecurity comments

Thrips present in Africa; the Caribbean and parts of Asia; frequently intercepted in the UK. Can cause significant damage to tomatoes and other crops in countries where it is present. Europe wide PRA will consider its potential to establish and cause damage.

About this section

Our plants are under greater threat than ever before. There is increasing movement of plants and other material traded from an increasing variety of sources. This increases the chances of exotic pests arriving with imported goods and travellers, as well as by natural means. Shoot is working with Defra to help members to do their part in preventing the introduction and spread of invasive risks.

Traveling or importing plants? Please read "Don't risk it" advice here

Suspected outbreak? Click here for contact details to report to the relevant authority.

Date updated: 7th March 2019 For more information visit: https://planthealthportal.defra.gov.uk/

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Knautia macedonica

(04/08/2011)

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This plant likes... Garden match
Soil types: Chalky, Clay, Loamy, Sandy (will tolerate most soil types) Tell us...
Soil drainage: 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

Dividing Nepeta Six Hills Giant

How is it best to divide a clump of Nepeta Six Hills Giant? (I'm a nervous novice gardener!) read more

Any suggestions for how best to curtail the growth of a number of clumps of my Nepeta Hills Giant? They are in their second year and are tending to overpower neighbouring plants. I`m a novice gardener by the way.,

Any suggestions for how best to curtail the growth of a number of clumps of my Nepeta Hills Giant? They are in their second year and are tending to overpower neighbouring plants. I`m a novice… read more

Nepeta no doing well

I should post a photo but for now I'm wondering if anyone has had a problem with Nepeta Six Hill's - plants went in only a few weeks ago and were healthy - now leaves are going red - no new growth… read more

There is 1 active discussion about Nepeta 'Six Hills Giant' (Catmint 'Six Hills Giant')

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