Geranium 'Johnson's Blue'

Geranium 'Johnson’s Blue': A True Blue Classic with Cottage Garden Charm
Beloved for its vivid, sky-blue blooms and soft, mounding form, Geranium 'Johnson’s Blue' is one of the most enduring and iconic hardy geraniums. From late spring through midsummer, it covers itself in saucer-shaped, periwinkle-blue flowers with violet veining—creating a dreamy haze of colour that lights up borders, cottage gardens, and mixed perennial plantings. Easy to grow and endlessly reliable, this cultivar offers that rarest of flower hues—true blue—in a relaxed and naturalistic habit.

Plant Characteristics:

• Height: 40–50 cm
• Spread: 60–75 cm, forming a loose, mounded clump
• Flower Colour: Bright sky-blue with purple veins and a faint white centre
• Flowering Period: Late spring to early summer, with light rebloom in autumn
• Foliage: Deeply lobed, medium green leaves; turns golden-red in autumn
• Sunlight Requirements: Full sun to partial shade
• Soil Requirements: Moist, well-drained soil; tolerates a range of conditions once established

Uses and Benefits: Geranium 'Johnson’s Blue' is ideal for softening borders, weaving through mixed beds, or spilling over low walls and paths. Its airy form and continuous flowering attract bees and butterflies, while its natural, billowing habit makes it a perfect choice for informal gardens and relaxed planting schemes. After its main bloom, the attractive foliage continues to provide texture and fall colour.

Companion Plants: Pair Johnson’s Blue with Coreopsis 'Sterntaler', whose sunny yellow blooms provide bright contrast to the geranium’s cool blue tones. Add Alchemilla mollis, whose frothy lime flowers and scalloped leaves enhance the soft, romantic aesthetic while thriving in similar conditions. Finish with Stachys 'Hummelo', whose spiky rose-lavender blooms and upright habit lend structure and extend the flowering season.

Care Instructions: Plant in full sun to part shade with moist, well-drained soil. Water regularly during dry periods, especially in sunny locations. Deadhead spent blooms to encourage tidiness and possible rebloom. Shear back after the main flowering to refresh foliage. Divide every 3–4 years in spring or autumn to maintain vigour and shape.

History: Geranium 'Johnson’s Blue' is a classic hybrid, thought to be a cross between Geranium himalayense and Geranium pratense. It was introduced in the mid-20th century and quickly became a garden favourite for its true-blue colour, long flowering season, and graceful habit—earning the Royal Horticultural Society’s Award of Garden Merit for its outstanding performance.

Final Thoughts: With its soft form, true blue blooms, and easygoing nature, Geranium 'Johnson’s Blue' is a quintessential cottage garden perennial. Whether flowing through borders or paired with bold summer bloomers, it brings a cool, calming presence and a touch of timeless charm to every garden it graces. A dependable classic that never loses its appeal.