Johnson's Blue Cranesbill Plants

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Misc Wildlife Value
Shade Full Shade, Full Sun, Partial Shade
Area Coastal Areas, Exposed Windy Areas, Frost Pockets, Scotland & The North
Soil Good, Well Drained, Alkaline/Chalky, Poor/Dry
Colour Blue (Medium)
Type Pot Grown
Also Good Repeat Flowering
Flowering May, Jun, Jul, Aug

Geranium × johnsonii Johnson's Blue

See full product description Potted Plant

  Buy 3 or more potted plants and save

SIZES 1-2 3-910+
  Prices include VAT



Geranium Johnsons Blue

A go-to perennial for garden designers - it's no wonder Geranium Johnsons Blue is so popular! (You'll also see it written as Johnson's Blue). Its deep lavender-blue, saucer-shaped flowers start to appear in May among the attractive, deeply divided, mid-green leaves. The clusters of flowers become paler blue at the centre, creating a stunning effect. Once the first flush of blooms has finished, cut back any old leaves and flowering stems and you'll get a second flush of flowers later in the summer.

Grown primarily as weed-suppressing ground cover, plants quickly knit together to form an unbroken mat. Geraniums are the traditional plants for ground cover under roses - why not check out the rest of our range of geraniums?

Great In Your Garden...

Johnsons Blue is one of the easiest plants to grow, so it's ideal for beginners and is loved by pollinators, so it's perfect for the wildlife garden.

From a design point of view, geraniums are fantastic at covering the dying foliage of bulbs, and the bare soil under roses and other large shrubs, as they don't mind a bit of shade.

They look lovely weaving in and out of the front of a mixed border and will provide a little bit of support to plants growing through them, like Euphorbias.


  • Flower: Deep lavender blue.
  • Foliage: Mid-green divided leaves.
  • Flowering: May to August.
  • Height: 30cm.
  • Spread: 60cm.
  • Spacing: 60cm.
  • Position: Sun or partial shade.
  • Soil: Loam, clay, sand, chalk, moist but well-drained.

Did You Know...

Don't confuse these true perennial geraniums (cranesbills) with the fuzzy-leaved showy tender pot plants often referred to as the same thing - they're actually Pelargoniums.

  • Small Box

    Small box

    (Orders containing only seedlings or rooted cuttings)


    including VAT per order


    For ORDERS
    Over £60 inc VAT

  • Standard box

    (Bareroots up to
    1.2m & plants in p9 pots)


    including VAT per order


    For ORDERS
    Over £60 inc VAT

  • Large box

    (Pots up to
    and incl. 7.5L)


    including VAT per order


    For ORDERS
    Over £100 inc VAT

  • Trees & Hedging

    (Bareroot plants and trees
    over 1.2 metres in height)


    including VAT per order


    For ORDERS
    Over £120 inc VAT

  • Pallets

    (Root balls, large pots,
    trees etc)


    including VAT per order


    For ORDERS
    Over £240 inc VAT

  • *Delivery to mainland Britain & the Isle of Wight ONLY. Surcharges to the Isle of Wight and some areas of Scotland apply.

Bareroot planting is best done between October and April
Bareroot and potted - what's the difference?

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