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Teucrium fruticans 'Azureum' AGM

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© RHS

Characteristics

Plant type

Shrub

Habit

Bushy

Fragrance

Leaf

Resilience

Hardiness

H3 (half hardy - unheated greenhouse/mild winter)

Colour

Flower

Blue in Summer

Foliage

Dark Green in Autumn, Spring, Summer and Winter

Stem

White in

Size

Ultimate height

1-1.5 metres

Ultimate spread

1-1.5 metres

Time to ultimate height

5-10 years


Preferred common name

azure tree germander

Family

Lamiaceae


Teucrium can be herbaceous perennials, deciduous or evergreen shrubs or sub-shrubs, with paired, aromatic leaves and tubular, 1-lipped flowers in whorls

'Azureum' is a small, lax evergreen shrub with white-felted shoots and small, ovate, glossy dark green leaves, white beneath. Terminal racemes of two-lipped, clear blue flowers 2.5cm long open in summer

How to grow

Sunlight

  • Full sun

Aspect

  • South-facing or West-facing
  • Sheltered

Cultivation

Grow in a sheltered border with full sun or against a warm, sunny wall in well-drained neutral to alkaline soil

Soil

  • Well-drained
  • Neutral or Alkaline
  • Sand, Chalk or Loam

Propagation

Propagate by softwood cuttings in early summer, semi-ripe cuttings in midsummer, both with bottom heat

Suggested planting locations and garden types

City/Courtyard Gardens, Coastal, Cottage/Informal Garden, Flower borders and beds or Wall-side Borders


How to care

Pruning

Pruning group 7

Pests

Generally trouble free

Diseases

Generally trouble free