Viola 'Dawn' (Vtta)

RHS Plant Profile
violetta 'Dawn'

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Herbaceous Perennial
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A compact, clump-forming, evergreen perennial to about 15cm, with sweetly scented, pale yellow, pansy-like flowers borne from late spring to early autumn

Position

Partial shade

Soil Types

Clay, Loam, Sand, Chalk

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

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

Position

Partial shade
Aspect
East–facing or 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
Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Violaceae
Native to GB/Ireland
No
Foliage
Evergreen
Habit
Clump forming
Genus
Viola can be annuals, biennials or deciduous or evergreen perennials, with simple or pinnately lobed leaves and 5-petalled flowers of characteristic shape
Name Status
Unresolved
Horticultural Group

Horticultural Classification Codes

Horticultural Classification Codes are often given to genera which have a large number of species or cultivars. They are used to categorise cultivated plants based on specific, shared characteristics such as shape, colour, size or flowering time, and can be displayed as letters or numbers

For example:
Dahlia ‘Sunset Kate (Sin) = Single flower
Rosa ‘Marigold’ (HT) = Hybrid Tea

Violetta viola are smaller, low-growing perennial tufted violas with neat foliage and masses of often highly-fragrant flowers

How to Grow

Cultivation

Grow in fertile, humus-rich, moist but well-drained soil. Prefers partial shade

Propagation

Propagate by softwood tip cuttings in spring or late summer. May be short-lived so propagate regularly

Suggested planting locations and garden types

  • City and courtyard gardens
  • Cottage and informal garden
  • Patio and container plants
  • Rock garden
  • Flower borders and beds
  • Underplanting of roses and shrubs
  • Bedding

Pruning

Deadhead to prolong flowering. After flowering, cut back vigorous plants to maintain shape

Pests

May be susceptible to slugs, snails, aphids, red spider mites and violet leaf midges

Diseases

May be susceptible to powdery mildews, pansy leaf spot, a virus and a rust