Overview
Lobelia erinus 'Regatta Sapphire' is a clump forming herbaceous perennial in the genus Lobelia, part of the Campanulaceae family, with deciduous foliage. Lobelia erinus 'Regatta Sapphire' grows best in full sun and partial shade, and tolerates most soils and any pH. Its UK hardiness is rated H5. Suggested uses include city and courtyard gardens and cottage and informal garden.
About
Lobelia erinus 'Regatta Sapphire' is a clump-forming herbaceous perennial belonging to the Campanulaceae family. Like other Lobelia species, it features simple leaves and two-lipped flowers, appearing in clusters. This cultivar thrives in full sun or partial shade, favouring sheltered, east-, south- or west-facing aspects. It prefers fertile, moist but well-drained soils of various types and pH levels, including chalk, clay, loam, and sand. Hardy to UK zone H5, it is suitable for city and courtyard gardens as well as cottage and informal garden settings. Propagation is by division, with interest in spring and summer.
Growing conditions
Best soil and position for Lobelia
- Sunlight
- Full sun, Partial shade
- Soil type
- Chalk, Clay, Loam, Sand
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Moist but well-drained
- Aspect
- East-facing, South-facing, West-facing
- Exposure
- Sheltered
- UK hardiness
- H5
Plant details
Lobelia erinus 'Regatta Sapphire' size, habit and characteristics
- Plant type
- Herbaceous Perennial
- Habit
- Clump forming
- Foliage
- Deciduous
- Suggested uses
- City and courtyard gardens, Cottage and informal garden
Care notes
Pruning and caring for Lobelia erinus 'Regatta Sapphire'
- Propagation
- Propagate by division
- Pest resistance
- May be susceptible to slugs
- Disease resistance
- May be susceptible to crown rot and a virus
Frequently asked questions
Where is the best place to plant Lobelia erinus 'Regatta Sapphire'?
Lobelia erinus 'Regatta Sapphire' prefers full sun and partial shade. It suits sheltered positions.
What soil does Lobelia erinus 'Regatta Sapphire' need?
Lobelia erinus 'Regatta Sapphire' is adaptable and grows happily in most soil types, including chalk, clay, loam and sand. It is happy in soil of any pH. Aim for soil that stays moist but well-drained.
Is Lobelia erinus 'Regatta Sapphire' hardy in the UK?
Lobelia erinus 'Regatta Sapphire' has an RHS hardiness rating of H5, meaning it is hardy in most of the UK, tolerating -15 to -10°C.
How do I propagate Lobelia erinus 'Regatta Sapphire'?
Propagate by division.
More in the Lobelia genus
- Hypsela reniformis
- Lobelia cardinalis
- Lobelia erinus 'Dolobelazu'PBR
- Lobelia erinus 'Flo173992'
- Lobelia erinus 'Riviera Lilac' (Riviera Series)
- Lobelia erinus 'Tech Hevio'
- Lobelia keniensis
- Lobelia nicotianifolia
