Overview
Geranium phaeum 'Joan Grey' is a clump-forming, mat-forming, trailing, carpet-forming herbaceous perennial in the genus Geranium, part of the Geraniaceae family, with light green, bright green, silvery, dissected, patterned foliage. Geranium phaeum 'Joan Grey' grows best in full sun, and tolerates most soils and neutral pH. Its UK hardiness is rated H7. Suggested uses include borders, cottage gardens, rock gardens, woodland beds and containers.
About
Geranium phaeum 'Joan Grey' is a herbaceous perennial cultivar of the Geranium genus, known for its clump-forming, mat-forming, trailing, and carpet-forming habit. It features light green to silvery, dissected, and patterned foliage that adds interest to borders, cottage gardens, rock gardens, woodland beds, and containers. This cultivar thrives in full sun on south-, west-, or east-facing, sheltered aspects, preferring moist but well-drained sandy, loamy, or clay soils with a neutral pH. Hardy to UK zone H7, it flowers in spring and summer and is adaptable to moderately fertile soils.
Growing conditions
Best soil and position for Geranium
- Sunlight
- Full sun
- Soil type
- Sandy, Loamy, Clay
- Soil pH
- Neutral
- Soil moisture
- Moist but well-drained
- Aspect
- South-facing, West-facing, East-facing
- Exposure
- Sheltered
- UK hardiness
- H7
Plant details
Geranium phaeum 'Joan Grey' size, habit and characteristics
- Plant type
- Herbaceous Perennial
- Habit
- Clump-forming, Mat-forming, Trailing, Carpet-forming
- Foliage
- Light green, Bright green, Silvery, Dissected, Patterned
- Suggested uses
- Borders, Cottage gardens, Rock gardens, Woodland beds, Containers
Care notes
Pruning and caring for Geranium phaeum 'Joan Grey'
- Propagation
- Seed, Division, Cuttings
- Pest resistance
- Aphids, Vine weevil, Caterpillars, Thrips
- Disease resistance
- Grey moulds
Frequently asked questions
Where is the best place to plant Geranium phaeum 'Joan Grey'?
Geranium phaeum 'Joan Grey' prefers full sun. It suits sheltered positions.
What soil does Geranium phaeum 'Joan Grey' need?
Geranium phaeum 'Joan Grey' is adaptable and grows happily in most soil types, including sandy, loamy and clay. It prefers neutral soil. Aim for soil that stays moist but well-drained.
Is Geranium phaeum 'Joan Grey' hardy in the UK?
Geranium phaeum 'Joan Grey' has an RHS hardiness rating of H7, meaning it is fully hardy throughout the UK, tolerating temperatures below -20°C.
How do I propagate Geranium phaeum 'Joan Grey'?
Seed, Division, Cuttings.
More in the Geranium genus
- Geranium 'Brookside'Geranium
- Geranium 'Copper Tiger'Hardy Geranium
- Geranium 'Nimbus'Geranium
- Geranium 'Patricia'
- Geranium 'Purple Rain'cranesbill 'Purple Rain'
- Geranium 'Red Dwarf'
- Geranium 'Wargrave Pink'
- Geranium Patricia ('Brempat')cranesbill [Patricia]