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Herbaceous Perennial

Nepeta 'Hill Grounds'
  • RHS Plants for pollinators

catmint 'Hill Grounds'

'Hill Grounds' is a bushy, relatively compact perennial to 55cm tall forming mounds of greyish-green, aromatic foliage topped with spikes of intense violet-blue flowers in 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

West–facing or East–facing or South–facing

Exposure
Exposed or Sheltered
Drought resistance
Yes
Hardiness
H7
Botanical details
Family
Lamiaceae
Native to GB / Ireland
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

Accepted

How to grow

Cultivation

Grow in any well-drained soil in full sun

Propagation

Propagate by division in spring or autumn or by softwood cuttings in early summer

Suggested planting locations and garden types
  • Cottage and informal garden
  • Gravel garden
  • Wildlife gardens
  • Flower borders and beds
Pruning

Trim in midsummer to keep plants compact and to encourage further flowering

Pests

May be damaged by slugs and snails

Diseases

May be affected by powdery mildews in dry summers

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