Overview
Gentiana 'True Blue' is a matforming, trailing herbaceous perennial in the genus Gentiana, part of the Gentianaceae family, with semi-evergreen, deciduous foliage. Gentiana 'True Blue' grows best in full sun and partial shade, and tolerates loam and sand soils and acid and neutral pH. Its UK hardiness is rated H5. Suggested uses include rock garden, container and border.
About
Gentiana 'True Blue' is a matforming, trailing cultivar of the Gentiana genus, known for its trumpet-shaped blooms. It features semi-evergreen to deciduous foliage and thrives in full sun or partial shade, favouring east, south, or west-facing aspects. Suitable for both exposed and sheltered locations, it prefers fertile, moist but well-drained loam or sandy soils with an acid to neutral pH. Hardy to UK zone H5, this cultivar is ideal for rock gardens, containers, and borders, providing interest during summer and autumn. Propagation is best achieved by division in spring.
Growing conditions
Best soil and position for Gentiana
- Sunlight
- Full sun, Partial shade
- Soil type
- Loam, Sand
- Soil pH
- Acid, Neutral
- Soil moisture
- Moist but well-drained
- Aspect
- East-facing, South-facing, West-facing
- Exposure
- Exposed, Sheltered
- UK hardiness
- H5
Plant details
Gentiana 'True Blue' size, habit and characteristics
- Plant type
- Herbaceous Perennial, Alpine Rockery
- Habit
- Matforming, Trailing
- Foliage
- Semi-evergreen, Deciduous
- Suggested uses
- Rock garden, Container, Border
Care notes
Pruning and caring for Gentiana 'True Blue'
- Propagation
- Division in spring
- Pest resistance
- Slugs, Snails, Aphids, Red spider mite
- Disease resistance
- Rust, Stem rot
Frequently asked questions
Where is the best place to plant Gentiana 'True Blue'?
Gentiana 'True Blue' prefers full sun and partial shade. It suits exposed and sheltered positions.
What soil does Gentiana 'True Blue' need?
Gentiana 'True Blue' grows best in loam and sand soil. It prefers acid and neutral soil. Aim for soil that stays moist but well-drained.
Is Gentiana 'True Blue' hardy in the UK?
Gentiana 'True Blue' 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 Gentiana 'True Blue'?
Division in spring.
More in the Gentiana genus
- Gentiana acaulis 'Gedanensis'
- Gentiana affinis
- Gentiana albawhitish gentian
- Gentiana andrewsiibottle gentian
- Gentiana bavaricaBavarian gentian
- Gentiana calycosa
- Gentiana depressa
- Gentiana dinaricablue trumpet gentian
