Nemesia caerulea 'Sea Mist'

RHS Plant Profile
nemesia 'Sea Mist'

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nemesia 'Sea Mist' RHS 1998
Annual Biennial Bedding

A compact mat-forming perennial usually grown as an annual, with narrow leaves and loose racemes of fragrant, pale purple flowers from late spring to early autumn

Position

Full sun

Soil Types

Loam, Sand

Max Height

0.1-0.5 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity
1–2 years
Max Spread
0.1-0.5 metres
Max Height
0.1-0.5 metres

Growing Conditions

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

Position

Full sun
Aspect
South–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)
H3

Colour & Scent

Fragrance Flower
Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Scrophulariaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Matforming
Genus
Nemesia can be annuals, perennials or sub-shrubs of bushy habit, with simple, opposite leaves and 2-lipped flowers in short racemes or solitary in the leaf axils
Name Status
Accepted

How to Grow

Cultivation

Grow in moist, fertile soil in full sun. Flowering stops in dry weather unless watered freely. Pinch out growing tips to produce bushy plants

Propagation

Take softwood cuttings from the ends of non-flowering shoots in late summer and overwinter plants in frost-free conditions or take softwood cuttings in spring

Suggested planting locations and garden types

  • City and courtyard gardens
  • Patio and container plants
  • Cottage and informal garden
  • Garden edging
  • Flower borders and beds

Pruning

Trim off flowering shoots when first flush of flowers finished

Pests

Generally pest-free

Diseases

Generally disease-free, but may suffer from foot and root rots in wet soils