Petunia Sanguna Blue Vein ('Potliblue') (Sanguna Series)

RHS Plant Profile
petunia [Sanguna Blue Vein]

Save a plant

Where do you want to save Petunia Sanguna Blue Vein ('Potliblue') (Sanguna Series)?

Plants I own
Wishlist
Go to My Plants
petunia [Sanguna Blue Vein] RHS / Joanna Kossak
petunia [Sanguna Blue Vein] RHS / Joanna Kossak

Synonyms

Petunia 'Potliblue'

Annual Biennial

A bushy, semi-trailing annual with pale blue flowers veined with deeper blue-purple, opening from summer into 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 year
Max Spread
0.1-0.5 metres
Max Height
0.1-0.5 metres

Growing Conditions

Loam Sand
Moisture
Well–drained
pH
Acid or Alkaline or Neutral

Position

Full sun
Aspect
West–facing or South–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)
H2

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Solanaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Bushy, Trailing
Genus
Petunia can be annuals or perennials, with simple leaves and large, solitary, trumpet-shaped flowers in the upper leaf axils from late spring to autumn
Name Status
Trade

How to Grow

Cultivation

Grow in light, well-drained soil in full sun, with shelter from drying winds. Plant out after frosts have passed

Propagation

Propagate by softwood cuttings

Suggested planting locations and garden types

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

Pruning

Deadhead regularly

Pests

Aphids and slugs may be a problem

Diseases

May be susceptible to fungal foot rot and a virus