Overview
Torenia concolor var. formosana is a bushy annual biennial in the genus Torenia, part of the Linderniaceae family, with deciduous foliage. Torenia concolor var. formosana grows best in full sun and partial shade, and tolerates loam soils and any pH. Its UK hardiness is rated H2. Suggested uses include city and courtyard gardens, cottage and informal garden, hanging basket, patio and container plants, low maintenance, flower borders and beds and garden edging.
About
Torenia concolor var. formosana is a bushy cultivar of the Torenia genus, known for its deciduous foliage. It thrives in full sun or partial shade, preferring a sheltered position with an east, south, or west-facing aspect. This plant grows best in fertile, moist but well-drained loam soil, tolerant of acid, alkaline, and neutral pH levels. Hardy to UK zone H2, it is suitable for a variety of garden settings including city and courtyard gardens, cottage and informal gardens, as well as patios, containers, and hanging baskets. It provides seasonal interest in spring and summer and can be propagated by seed or stem cuttings.
About the genus
Torenia is a genus of plants now classified in the family Linderniaceae. Torenia has also been classified in the figwort family Scrophulariaceae. Species are often called wishbone flowers, bluewings, or in Hawaii nanioola'a or ola'a beauty.
Wikipedia contributors, "Torenia", CC BY-SA 4.0 — Torenia
Growing conditions
Best soil and position for Torenia
- Sunlight
- Full sun, Partial shade
- Soil type
- Loam
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Moist but well-drained
- Aspect
- East-facing, South-facing, West-facing
- Exposure
- Sheltered
- UK hardiness
- H2
Plant details
Torenia concolor var. formosana size, habit and characteristics
- Plant type
- Annual Biennial
- Habit
- Bushy
- Foliage
- Deciduous
- Suggested uses
- City and courtyard gardens, Cottage and informal garden, Hanging basket, Patio and container plants, Low Maintenance, Flower borders and beds, Garden edging
Care notes
Pruning and caring for Torenia concolor var. formosana
- Propagation
- Seed, Stem cuttings
- Pest resistance
- Slugs, Snails, Aphids
- Disease resistance
- Root rot, Powdery mildews
Frequently asked questions
Where is the best place to plant Torenia concolor var. formosana?
Torenia concolor var. formosana prefers full sun and partial shade. It suits sheltered positions.
What soil does Torenia concolor var. formosana need?
Torenia concolor var. formosana grows best in loam soil. It is happy in soil of any pH. Aim for soil that stays moist but well-drained.
Is Torenia concolor var. formosana hardy in the UK?
Torenia concolor var. formosana 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 Torenia concolor var. formosana?
Seed, Stem cuttings.
More in the Torenia genus
- Torenia Summer Wave Amethyst ('Sunrenilapa'PBR)Wishbone Flower
- Torenia Indigo Moon ('Dantomon10') (Moon Series)Wishbone Flower
- Torenia Summerwave Amethyst ('Sunrenirirepa'PBR)Wishbone Flower