Overview
Thunbergia alata 'Lemon Queen' is a climbing climber wall shrub in the genus Thunbergia, part of the Acanthaceae family, with evergreen foliage. Thunbergia alata 'Lemon Queen' 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 alata 'Lemon Queen' (black-eyed Susan 'Lemon Queen') is a climbing evergreen cultivar within the Thunbergia genus, known for its twining growth habit. It thrives in full sun on a south-facing, sheltered aspect with well-drained, neutral loam soil. This cultivar is suitable for use in cottage and informal gardens, patios, containers, city and courtyard gardens, as well as flower borders and beds. It flowers in spring and summer, benefiting from fertile soil and roots shaded from direct sun, 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 alata 'Lemon Queen' 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 alata 'Lemon Queen'
- 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 alata 'Lemon Queen'?
Thunbergia alata 'Lemon Queen' prefers full sun. It suits sheltered positions.
What soil does Thunbergia alata 'Lemon Queen' need?
Thunbergia alata 'Lemon Queen' grows best in loam soil. It prefers neutral soil. Aim for soil that stays well-drained.
Is Thunbergia alata 'Lemon Queen' hardy in the UK?
Thunbergia alata 'Lemon Queen' 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 alata 'Lemon Queen'?
Seed, Semi-ripe cuttings.
More in the Thunbergia genus
- Thunbergiaclock vine
- 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
- Thunbergia erecta 'Alba'