Marrubium libanoticum

RHS Plant Profile
Lebanese white horehound

Save a plant

Where do you want to save Marrubium libanoticum?

Plants I own
Wishlist
Go to My Plants
Herbaceous Perennial
Buy this from Plant Nurseries
1 Suppliers

Bushy, deciduous perennial to around 40-50cm tall with oblong to heart-shaped, woolly, grey-green leaves. Small, tubular white flowers in upright whorls are produced during mid to late summer

Position

Full sun

Soil Types

Chalk, Sand, Loam

Max Height

0.1-0.5 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity
2–5 years
Max Spread
0.1-0.5 metres
Max Height
0.1-0.5 metres

Growing Conditions

Chalk Sand Loam
Moisture
Well–drained
pH
Acid or 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)
H4
Drought Resistance
Yes

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Lamiaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Spreading branched
Genus
A genus of herbaceous flowering plants, closely related to mint, with aromatic, oval-shaped, grey-green, hairy wrinkled foliage and white flowers which appear on the upper part of the stem
Name Status
Correct

How to Grow

Cultivation

Grow in sharply-drained soil in full sun with shelter from cold drying winds, and protect from excessive winter wet with a dry mulch

Propagation

Propagate by seed or by softwood cuttings in spring

Suggested planting locations and garden types

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

Pruning

Cut down dead stems in late winter

Pests

Generally pest-free

Diseases

Generally disease-free