Overview

Geranium phaeum 'Raven' is a clump forming herbaceous perennial in the genus Geranium, part of the Geraniaceae family, with deciduous foliage. It typically grows around 0.5-1 metres tall and 0.5-1 metres wide, reaching full size in around 2-5 years. Geranium phaeum 'Raven' grows best in full shade, full sun and partial shade, and tolerates most soils and any pH. Its UK hardiness is rated H5. It is low maintenance. Suggested uses include cottage and informal garden, wildlife gardens, flower borders and beds, ground cover, underplanting of roses and shrubs and banks and slopes. It is native to Europe.

About

Geranium phaeum 'Raven' (dusky cranesbill 'Raven') is a clump-forming herbaceous perennial belonging to the Geranium genus, which includes 422 species commonly known as cranesbills. This deciduous plant grows to between 0.5 and 1 metre in height and spread, reaching full size within 2 to 5 years. It thrives in a variety of soil types, including chalk, clay, loam, and sand, with a preference for moist but well-drained conditions. Suitable for full sun to full shade and all garden aspects, 'Raven' is low maintenance and provides interest through spring, summer, and winter.

About the genus

Geranium is a genus of 422 species of annual, biennial, and perennial plants that are commonly known as geraniums, hardy geraniums, or cranesbills. They are found throughout the temperate regions of the world and the mountains of the tropics, with the greatest diversity in the eastern part of the Mediterranean region.

Wikipedia contributors, "Geranium", CC BY-SA 4.0Geranium

Growing conditions

Best soil and position for Geranium

Sunlight
Full shade, Full sun, Partial shade
Soil type
Chalk, Clay, Loam, Sand
Soil pH
Acid, Alkaline, Neutral
Soil moisture
Moist but well-drained
Aspect
North-facing, South-facing, West-facing, East-facing
Exposure
Exposed, Sheltered
UK hardiness
H5

Plant details

Geranium phaeum 'Raven' size, habit and characteristics

Plant type
Herbaceous Perennial
Habit
Clump forming
Foliage
Deciduous
Height
0.5-1 metres
Spread
0.5-1 metres
Time to full height
2-5 years
Suggested uses
Cottage and informal garden, Wildlife gardens, Flower borders and beds, Ground cover, Underplanting of roses and shrubs, Banks and slopes
Native to
Europe

Care notes

Pruning and caring for Geranium phaeum 'Raven'

Cultivation
Prefers moist, well-drained soil in full sun to full shade. Tolerates a range of soil types and pH levels. Low maintenance once established.
Pruning
Cut back after flowering to maintain shape and encourage fresh growth.
Propagation
Division, Basal cuttings, Seed
Pest resistance
Vine weevil, Sawflies, Slugs, Snails, Capsid bug, Geranium sawfly, Glasshouse leafhopper, Root mealybugs, Aphids, Caterpillars, Thrips, Fungus gnats, Glasshouse whitefly
Disease resistance
Powdery mildews, Downy mildews, Virus diseases, Pelargonium rust, Grey moulds, Black leg

Frequently asked questions

How do I grow Geranium phaeum 'Raven'?

Prefers moist, well-drained soil in full sun to full shade. Tolerates a range of soil types and pH levels. Low maintenance once established.

Where is the best place to plant Geranium phaeum 'Raven'?

Geranium phaeum 'Raven' prefers full shade, full sun and partial shade. It suits exposed and sheltered positions.

What soil does Geranium phaeum 'Raven' need?

Geranium phaeum 'Raven' 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.

How do I prune Geranium phaeum 'Raven'?

Cut back after flowering to maintain shape and encourage fresh growth.

How big does Geranium phaeum 'Raven' grow?

Geranium phaeum 'Raven' reaches a height of 0.5-1 metres and a spread of 0.5-1 metres. It takes around 2-5 years to reach full size.

Is Geranium phaeum 'Raven' hardy in the UK?

Geranium phaeum 'Raven' 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 Geranium phaeum 'Raven'?

Division, Basal cuttings, Seed.

More in the Geranium genus

Browse all Geranium

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