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Herbaceous Perennial

Nepeta grandiflora
  • RHS Plants for pollinators

Caucasus catmint

N. grandiflora is an upright perennial to 75cm tall, of loose, open habit, with downy, aromatic leaves and long, lax spikes of light, purple-blue flowers in early summer

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Size
Ultimate height
0.5–1 metres
Time to ultimate height
2–5 years
Ultimate spread
0.5–1 metres
Growing conditions
Chalk
Loam
Sand
Moisture
Well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green Grey Silver
Summer Blue Purple Green Grey Silver
Autumn Green Grey Silver
Winter
Position
  • Full sun
Aspect

South–facing or West–facing

Exposure
Exposed or Sheltered
Drought resistance
Yes
Hardiness
H6
Botanical details
Family
Lamiaceae
Native to the UK
No
Foliage
Deciduous
Habit
Bushy
Genus

Nepeta can be annuals or, more commonly, perennials, with paired, usually aromatic leaves, and terminal spikes or panicles of 2-lipped, tubular flowers

Name status

Correct

Plant range
Caucasus

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How to grow

Cultivation

Grow in any well-drained soil in full sun

Propagation

Propagate by softwood cuttings in early summer or propagate by semi-ripe cuttings in early autumn or by division

Suggested planting locations and garden types
  • Coastal
  • Cottage and informal garden
  • Gravel garden
  • Mediterranean climate plants
  • Flower borders and beds
  • Underplanting of roses and shrubs
  • Banks and slopes
Pruning

Trim after flowering to keep the plant bushy and compact

Pests

May be susceptible to slugs and snails

Diseases

May be susceptible to powdery mildews in dry summers

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