Overview
Thunbergia grandiflora 'Alba' is a climbing climber wall shrub in the genus Thunbergia, part of the Acanthaceae family, with evergreen foliage. Thunbergia grandiflora 'Alba' grows best in full sun, and tolerates loam soils and neutral pH. Its UK hardiness is rated H2. Suggested uses include cottage and informal garden, patio and container plants, city and courtyard gardens and flower borders and beds.
About
Thunbergia grandiflora 'Alba' is an evergreen climbing cultivar within the Thunbergia genus, known for its twining growth habit and simple, opposite leaves. It produces trumpet-shaped flowers in the spring and summer, thriving best in full sun on a south-facing, sheltered aspect. Preferring fertile, well-drained loam with neutral pH and roots shaded, this cultivar suits cottage and informal gardens, patios, containers, city courtyards, and flower borders. It is hardy to UK zone H2 and can be propagated by seed or semi-ripe cuttings.
Growing conditions
Best soil and position for Thunbergia
- Sunlight
- Full sun
- Soil type
- Loam
- Soil pH
- Neutral
- Soil moisture
- Well-drained
- Aspect
- South-facing
- Exposure
- Sheltered
- UK hardiness
- H2
Plant details
Thunbergia grandiflora 'Alba' size, habit and characteristics
- Plant type
- Climber Wall Shrub, Conservatory Greenhouse
- Habit
- Climbing
- Foliage
- Evergreen
- Suggested uses
- Cottage and informal garden, Patio and container plants, City and courtyard gardens, Flower borders and beds
Care notes
Pruning and caring for Thunbergia grandiflora 'Alba'
- Propagation
- Seed, Semi-ripe cuttings
- Pest resistance
- Aphids, Glasshouse red spider mite, Glasshouse whitefly, Scale insects
- Disease resistance
- Powdery mildews
Frequently asked questions
Where is the best place to plant Thunbergia grandiflora 'Alba'?
Thunbergia grandiflora 'Alba' prefers full sun. It suits sheltered positions.
What soil does Thunbergia grandiflora 'Alba' need?
Thunbergia grandiflora 'Alba' grows best in loam soil. It prefers neutral soil. Aim for soil that stays well-drained.
Is Thunbergia grandiflora 'Alba' hardy in the UK?
Thunbergia grandiflora 'Alba' has an RHS hardiness rating of H2, meaning it is tender, tolerating 1–5°C, and needs frost-free protection over winter.
How do I propagate Thunbergia grandiflora 'Alba'?
Seed, Semi-ripe cuttings.
More in the Thunbergia genus
- Thunbergiaclock vine
- Thunbergia alata 'Lemon Queen'black-eyed Susan 'Lemon Queen'

- Thunbergia alata 'Orange Beauty'black-eyed Susan 'Orange Beauty'

- Thunbergia alata 'Salmon Shades'

- Thunbergia alata 'Susie Orange Black Eye' (Susie Series)

- Thunbergia battiscombei

- Thunbergia coccinea
- Thunbergia erectabush clock vine
