Geranium ‘Johnson’s Blue’ – A Timeless Border Favourite with Clear Blue Flowers
Geranium ‘Johnson’s Blue’ is one of the most loved and widely grown hardy geraniums, valued for its generous display of clear sky-blue flowers and its easy, spreading habit. From late spring through early summer, large saucer-shaped blooms are held above softly divided green foliage, creating a relaxed, informal look that suits almost any garden style.
The plant quickly forms a low, spreading mound, making it ideal for filling gaps in borders, softening edges, and suppressing weeds beneath shrubs and roses. After its main flush of flowers, a light trim encourages fresh foliage and often a second, lighter bloom later in the season.
Exceptionally hardy and adaptable, ‘Johnson’s Blue’ thrives in sun or partial shade and copes well with most soil types. Its reliability and low-maintenance nature make it a staple of cottage gardens, mixed borders, and naturalistic planting schemes, where it blends beautifully with perennials and shrubs alike.
Easy-going, long-flowering, and endlessly useful, Geranium ‘Johnson’s Blue’ is a garden classic that never goes out of fashion.
Seasonal Highlights
Late Spring: Masses of large, clear-blue flowers appear.
Summer: Soft green foliage forms a spreading groundcover.
Autumn: Fresh leaves follow cutting back; occasional late flowers.
Winter: Herbaceous plant dies back and re-emerges in spring.
Key Features
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Clear blue flowers – One of the bluest hardy geraniums.
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Spreading habit – Excellent groundcover and gap-filler.
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Long flowering – Blooms generously in late spring and early summer.
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Hardy and reliable – Easy to grow in most gardens.
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Low maintenance – Responds well to a simple cut back.
Perfect For
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Mixed borders – Softens planting and fills gaps beautifully.
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Groundcover – Suppresses weeds under shrubs and roses.
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Cottage gardens – Classic, informal charm.
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Wildlife-friendly gardens – Attracts pollinators.
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Naturalistic planting – Blends easily with other perennials.
Growing Tips
Sun/Position: Full sun to partial shade.
Soil: Moist but well-drained soil; tolerates most soil types.
Hardiness: Fully hardy across the UK.
Care: Cut back after the first flush of flowers to encourage fresh growth and possible re-flowering.
Looks Great With
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Roses – Softens and complements shrub and climbing roses.
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Cottage perennials – Alchemilla, Campanula, Aquilegia.
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Grasses – Stipa, Deschampsia.
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Shrubs – Hydrangea, Spiraea, Philadelphus.
Does the height include the pot?
No, we measure from the top of the pot to the tip of the plant except for some of the instant planted screens, in this case it will be stated in the description
How long does delivery take?
Most orders are delivered in just a few days, Smaller items are often sent with Parcelforce on a next day service, Larger items should allow up to 10 days due to the size of the items they often have to be sent on our own transport.
Where will you leave my plants?
We will leave your order at the front of your property, Parcelforce may
leave your items in a safe place if you let us know, Pallet couriers
will require a flat hard surface to deliver to, no gravel or soil, a
driveway or parking spot would be best. Most importantly Deliveries by
pallet courier will require access for a large truck (bin lorry sized)
to get near the delivery point. Deliveries sent on our own transport may come in a small van or larger truck.
