Geranium 'Johnson's Blue'
Masses of lavender-blue saucers
Grown by Mike's perennial specialists
UK
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Plant diary
- Flower
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Geranium 'Johnson's Blue'
- Secure one of the most beloved and highly reliable cranesbills ever introduced, famous for its massive, spectacular, saucer-shaped lavender-blue flowers.
- This geranium is an absolute blooming machine, putting on an incredibly prolific, high-impact show throughout the entire early-to-mid summer.
- Geranium 'Johnson's Blue' forms a wonderfully dense, sprawling mound of deeply cut green foliage that acts as a highly effective, weed-smothering groundcover.
- It is spectacularly versatile, looking equally at home tumbling over a rockery, edging a pathway, or filling gaps in a traditional cottage border.
- Simply shear it back after its first massive flush of blooms, and this phenomenally tough perennial will reward you with a fresh burst of beautiful foliage and late flowers.
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Please note: this page includes selected AI-assisted imagery for illustrative purposes.
What to expect
Supplied as
Eventual height
Eventual spread
Flower colour
Habit
Hardiness
Will this grow in my garden?
Can I grow this in a pot?
Yes, Geranium 'Johnson's Blue' grows well in pots with regular watering during dry spells.
How big does it get?
Geranium 'Johnson's Blue' typically reaches a mature height of 50 cm and a spread of 60 cm.
How much sunlight does this need?
Geranium 'Johnson's Blue' thrives in partial shade to full sun.
What kind of soil does this plant prefer?
Geranium 'Johnson's Blue' prefers moderately fertile, moist but well-drained soil.
How much watering does this plant need?
Geranium 'Johnson's Blue' needs about 2.5 centimetres of water per week, keeping the soil evenly moist.
Will this plant need pruning?
Geranium 'Johnson's Blue' does not need pruning, but cutting it back hard after the first flush of flowers will encourage fresh foliage and a second bloom.
How hardy is this plant?
Geranium 'Johnson's Blue' is fully hardy (H7), enduring temperatures below -20°C. It thrives uniformly across all regions of the UK without the need for winter protection.
The wider garden
UK
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Our perennial plants are raised by several of our most trusted UK growers, with only the very finest plants making the cut to be sent on to our Cotswolds nursery. Your perennials are double (then triple) checked over by our team – this is where being pernickety is a good thing – before being sent to you in the perfect condition for planting. Happy days.
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