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Conservatory GreenhouseShrubsSynonym

Brugmansia arborea 'Knightii'

angel's trumpet 'Knightii'

An evergreen shrub or small tree to 4m in height or more, with large elliptic leaves and pendulous, fragrant, hose-in-hose double, white flowers to 30cm in length

Synonyms
Brugmansia 'Knightii'
Brugmansia × candida 'Plena'
see moreBrugmansia arborea 'Knightii'
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Size
Ultimate height
2.5–4 metres
Time to ultimate height
10–20 years
Ultimate spread
1.5–2.5 metres
Growing conditions
Chalk
Clay
Loam
Sand
Moisture
Moist but well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer White Green
Autumn White Green
Winter Green
Position
  • Full sun
Aspect

South–facing or West–facing

Exposure
Sheltered
Drought resistance
Yes
Hardiness
H1C
Botanical details
Family
Solanaceae
Native to the UK
No
Foliage
Evergreen
Habit
Bushy
Potentially harmful
TOXIC if eaten, skin irritant, avoid eye contact. Wear gloves and other protective equipment when handling TOXIC to pets - see the HTA guide to potentially harmful plants for further information and useful contact numbers
Genus

Brugmansia are large evergreen shrubs with simple, ovate leaves and large, solitary, pendent trumpet-shaped or tubular flowers which are often fragrant

Name status

Accepted

How to grow

Cultivation

Under glass, grow in peat-free, loam-based potting compost in full light. Water freely while in active growth and apply a balanced liquid fertiliser every 2 weeks. Keep barely moist in winter. Maintain a minimum winter temperature of about 5°C; the plants will lose their leaves but these will regrow in spring. Plants may be moved outdoors to a position in light, dappled shade in summer. See brugmansia cultivation for further information

Propagation

Propagate by seed or semi-hardwood cuttings

Suggested planting locations and garden types
  • City and courtyard gardens
  • Cottage and informal garden
  • Patio and container plants
  • Flower borders and beds
Pruning

Pruning group 9, or pruning group 7 if needed

Pests

May be susceptible to glasshouse red spider mite, glasshouse whitefly, thrips and mealybugs under glass

Diseases

Generally disease-free

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