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Cestrum 'Newellii' AGM

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© RHS

Characteristics

Plant type

Conservatory/Greenhouse or Shrub

Habit

Bushy

Resilience

Hardiness

H1c (heated greenhouse - warm temperate)

Colour

Flower

Red in Autumn and Summer

Foliage

Green in Autumn, Spring, Summer and Winter

Fruit

Purple in Winter

Size

Ultimate height

2.5-4 metres

Ultimate spread

1.5-2.5 metres

Time to ultimate height

5-10 years


Preferred common name

bastard jasmine 'Newellii'

Family

Solanaceae


Cestrum can be shrub or scrambling climbers, with simple, evergreen leaves and tubular or salver-shaped flowers in terminal and axillary clusters, followed by red or black berries

'Newellii' is a vigorous evergreen shrub to 3m, with dull green lance-shaped leaves and clusters of bright crimson, tubular flowers 2cm long, followed by purple berries

How to grow

Sunlight

  • Full sun
  • Part shade

Aspect

  • South-facing, East-facing or West-facing
  • Sheltered

Cultivation

Under glass grow in containers using loam-based potting compost such as John Innes No.3 in full light with good ventilation and shade from hot sun. Water freely in summer and keep just moist in winter. Can be grown outdoors in a sheltered sunny site and well drained soil

Soil

  • Well-drained or Moist but well-drained
  • Acid, Alkaline or Neutral
  • Sand or Loam

Propagation

Propagate by seed in containers in a cold frame in spring or by softwood cuttings in summer

Suggested planting locations and garden types

Patio/Container Plants


How to care

Pruning

Pruning group 9

Pests

Generally pest free

Diseases

Generally disease free