Calibrachoa Unique Golden Yellow (Unique Series)

RHS Plant Profile
calibrachoa [Unique Golden Yellow]

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Synonyms

Calibrachoa Superbells Unique Golden Yellow (Superbells Series)

Annual Biennial

A tender, semi-trailing perennial usually grown as an annual, with small, oval-shaped green leaves. Masses of bright yellow flowers appear from May to October. An ideal option for a summer hanging basket

Position

Full sun

Soil Types

Chalk, Clay, 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

Chalk Clay Loam Sand
Moisture
Moist but well–drained or 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)
H2

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Solanaceae
Native to GB/Ireland
No
Foliage
Evergreen
Habit
Trailing
Genus
Calibrachoa are tender woody-based perennials usually grown as annuals, mostly trailing in habit, with simple leaves and petunia-like, trumpet-shaped flowers over a long period
Name Status
Trade

How to Grow

Cultivation

Grow in a sunny, sheltered site. Ideal for pots and hanging baskets

Propagation

Propagate by softwood cuttings

Suggested planting locations and garden types

  • City and courtyard gardens
  • Cottage and informal garden
  • Hanging Basket
  • Patio and container plants

Pruning

No pruning required. Deadhead to promote continuous flowering

Pests

May be susceptible to aphids, slugs and snails

Diseases

May be susceptible to grey moulds, foot rot and a virus