Overview
Gentiana glauca is a matforming, trailing herbaceous perennial in the genus Gentiana, part of the Gentianaceae family, with semi-evergreen, deciduous foliage. Gentiana glauca 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 glauca is a species of flowering plant in the gentian family known by the common names pale gentian and glaucous gentian. It is native to eastern Asia and northwestern North America from Alaska and the Northwest Territories to Washington and Montana. This perennial herb produces a basal rosette of oval leaves each 1–2 cm (0.39–0.79 in) long from a rhizome. Leaves on the stem are oppositely arranged, in pairs of 2–4, and 5–10 mm long. In the garden it prefers full sun and partial shade and loam and sand soil. In UK gardens it is hardy in most of the UK (RHS H5). Suggested uses include rock garden, container and border. It tolerates acid and neutral soils, moist but well-drained conditions and east-facing, south-facing and west-facing aspects. Plant out after last frost in fertile, well-drained soil.
Wikipedia contributors, CC BY-SA 4.0 — Gentiana glauca
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 glauca 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 glauca
- 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 glauca?
Gentiana glauca prefers full sun and partial shade. It suits exposed and sheltered positions.
What soil does Gentiana glauca need?
Gentiana glauca grows best in loam and sand soil. It prefers acid and neutral soil. Aim for soil that stays moist but well-drained.
Is Gentiana glauca hardy in the UK?
Gentiana glauca 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 glauca?
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
