Overview
Thunbergia 'Lemon Star' is a climbing climber wall shrub in the genus Thunbergia, part of the Acanthaceae family, with evergreen foliage. Thunbergia 'Lemon Star' 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 'Lemon Star' is a climbing cultivar within the Thunbergia genus, known for its evergreen foliage and twining growth habit. This plant thrives in full sun on a south-facing, sheltered aspect with well-drained, neutral loam soil. It flowers in spring and summer, contributing to cottage and informal gardens, patios, containers, city courtyards, and flower borders. Cultivation favours fertile soil with roots kept in shade, and propagation can be achieved by seed or semi-ripe cuttings. It is hardy to UK zone H2.
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 'Lemon Star' 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 'Lemon Star'
- 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 'Lemon Star'?
Thunbergia 'Lemon Star' prefers full sun. It suits sheltered positions.
What soil does Thunbergia 'Lemon Star' need?
Thunbergia 'Lemon Star' grows best in loam soil. It prefers neutral soil. Aim for soil that stays well-drained.
Is Thunbergia 'Lemon Star' hardy in the UK?
Thunbergia 'Lemon Star' 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 'Lemon Star'?
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
