Erythranthe 'Highland Red'

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monkey flower 'Highland Red'

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monkey flower 'Highland Red' RHS

Synonyms

Mimulus 'Highland Red'

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Herbaceous Perennial
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An herbaceous perennial, often short-lived, forming a compact mat of oval leaves, with bright crimson, trumpet-shaped flowers 3-4cm long

Position

Full sun, Partial shade

Soil Types

Chalk, Clay, Loam, Sand

Max Height

Up to 10 cm

Max Spread

0.1-0.5 metres

Size

Time to Maturity
2–5 years
Max Spread
0.1-0.5 metres
Max Height
Up to 10 cm

Growing Conditions

Chalk Clay Loam Sand
Moisture
Moist but well–drained
pH
Acid or Alkaline or Neutral

Position

Full sun Partial shade
Aspect
South–facing or West–facing or East–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

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Phrymaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Matforming
Genus
A genus of over 120 annuals or herbaceous perennials, many of which tolerate wet soils or even shallow water. Flowers are red, pink or yellow and some have a musky fragrance. They are a key food source for some species of butterflies and moths
Name Status
Accepted

How to Grow

Cultivation

Prefers moisture retentive soils in sun or partial shade. Short-lived

Propagation

Propagate by seed in the autumn or spring or by division in spring

Suggested planting locations and garden types

  • Rock garden
  • City and courtyard gardens
  • Coastal
  • Cottage and informal garden
  • Patio and container plants
  • Flower borders and beds

Pruning

No pruning required

Pests

slugs and snails may be a problem

Diseases

May be susceptible to Powdery mildews