Teucrium ackermannii hort.

RHS Plant Profile
silver germander

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Herbaceous Perennial
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An evergreen perennial with soft, velvety, aromatic lance-shaped silvery-green leaves. Clusters of lavender-purple fragranced flowers appear from May through to September

Position

Full sun

Soil Types

Chalk, Loam, Sand

Max Height

0.1-0.5 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity
5–10 years
Max Spread
0.1-0.5 metres
Max Height
0.1-0.5 metres

Growing Conditions

Chalk Loam Sand
Moisture
Well–drained
pH
Alkaline or Neutral

Position

Full sun
Aspect
South–facing or West–facing
Exposure
Sheltered
Hardiness

Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

  • H1A: under glass all year (>15C)
  • H1B: can be grown outside in the summer (10 - 15)
  • H1C: can be grown outside in the summer (5 - 10)
  • H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
  • H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
  • H4: hardy through most of the UK (-10 to -5)
  • H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
  • H6: hardy in all of UK and northern Europe (-20 to -15)
  • H7: hardy in the severest European continental climates (< -20)
H5

Colour & Scent

Fragrance Flower Foliage
Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Lamiaceae
Native to GB/Ireland
No
Foliage
Evergreen
Habit
Clump forming
Potentially harmful
Harmful if eaten. Wear gloves and other protective equipment when handling LJD
Genus
Teucrium can be herbaceous perennials, deciduous or evergreen shrubs or sub-shrubs, with paired, aromatic leaves and tubular, 1-lipped flowers in whorls
Name Status
Unresolved

How to Grow

Cultivation

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

Propagation

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

Suggested planting locations and garden types

  • City and courtyard gardens
  • Coastal
  • Cottage and informal garden
  • Patio and container plants
  • Gravel garden
  • Mediterranean climate plants
  • Rock garden
  • Low Maintenance
  • Flower borders and beds

Pruning

Pruning group 7

Pests

Generally pest-free

Diseases

Generally disease-free