Geranium 'Johnson's Blue' (Geranium 'Johnson's Blue')
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Beginner skill rating |
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1m max. spread |
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0.5m max. height |
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2-5 years to maturity |
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1 hour care per year |
Botanical name: Geranium 'Johnson's Blue'
Other names: Geranium 'Johnson's Blue', Geranium ibericum 'Johnson's Blue'
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Genus: Geranium
Variety or cultivar: 'Johnson's Blue' _ 'Johnson's Blue' has lobed leaves and long-stems bearing rounded, dark-veined, lavender-blue flowers.
Geranium 'Johnson's Blue' is: Deciduous
Flower: White, Purple, Blue in Summer
Foliage: Bright-green in Summer
Habit: Clump-forming, Mat Forming
Awards: RHS AGM (Award of Garden Merit)
Plant with: Ribes sanguineum 'Pulborough Scarlet' (Flowering currant 'Pulborough Scarlet'), Ballota pseudodictamnus (False dittany), Salvia patens 'Cambridge Blue' (Gentian sage 'Cambridge Blue'), Ballota acetabulosa (Greek horehound), Ribes laurifolium (Laurel-leaved currant), Ribes nigrum 'Ben Lomond' (Blackcurrant 'Ben Lomond'), Nepeta racemosa (Dwarf catmint), Tellima grandiflora (Fringe cups), Salvia uliginosa (Bog sage), Aconitum napellus subsp. vulgare 'Albidum' (Monkshood 'Albidun'), Aconitum napellus 'Rubellum' (Monkshood 'Rubellum'), Ribes sanguineum 'Atrorubens' (Flowering currant 'Atrorubens'), Aconitum napellus 'Gletschereis' (Monkshood 'Gletschereis'), Aconitum napellus subsp. napellus Anglicum Group (English monk's hood), Aconitum austroyunnanense (Chinese monk's hood)
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Watch out for
Specific pests: Capsid bug , Rose leaf-rolling sawfly , Vine weevil
Specific diseases: Powdery mildew
General care
Pruning: Remove stems once flowered and old leaves to encourage the production of new leaves and flowers. . REGISTER to read more...
Propagation methods: Basal cuttings, Division. REGISTER to read more...
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Geranium 'Johnson's Blue' (Geranium 'Johnson's Blue') will reach a height of 0.5m and a spread of 1m after 2-5 years.
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Suggested uses: Add to salads, Cake decoration, Cottage/Informal, Beds and borders, Ground Cover, Underplanting
Cultivation: Best planted in most moderately fertile soil (apart from waterlogged) in either full sun or partial shade. Shade is tolerated.
| This plant likes... | Garden match | |
| Soil types: | Chalky, Clay, Loamy, Sandy (will tolerate most soil types) |  |
| Soil drainage: | Moist but well-drained, Well-drained | |
| Soil pH: | Acid, Alkaline, Neutral | |
| Light: | Partial Shade, Full Sun | |
| Aspect: | North, South, East, West | |
| Exposure: | Exposed, Sheltered | |
| Hardiness: | Hardy (H4) | |
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