Geranium × johnsonii 'Johnson's Blue'

cranesbill

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2 litre pot £9.99
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Buy Geranium × johnsonii 'Johnson's Blue' cranesbill: Elegant blue flowers, good for groundcover

This perennial dies back to below ground level each year in autumn, then fresh new growth appears again in spring.

  • Position: full sun or partial shade
  • Soil: fertile, well-drained soil
  • Rate of growth: fast-growing
  • Flowering period: May - August
  • Hardiness: fully hardy

    Deep lavender-blue, saucer-shaped flowers appear in early summer among deeply divided, mid-green leaves. The loose clusters of lavender-blue flowers, become paler at the centre, look lovely weaving in and out of the front of a mixed border or at the base of flowering shrubs. This geranium rapidly forms a dense carpet of foliage, valuable for suppressing weeds, and if cut back after flowering, will usually produce a second flush of flowers later in the summer.

  • Garden care: In midsummer rejuvenate plants that are beginning to look jaded, by removing old flowered stems and leaves. Lift and divide large colonies in spring.

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Eventual height & spread

Notes on Geranium × johnsonii 'Johnson's Blue'

"The violet-blue flowers studded with golden stamens precede most other blues, so it still holds its own - shear it back after flowering and you may get some more indigo-washed flowers"

Great product

5

These pretty geraniums are a wonderful blue colour and have a truly natural look fitting in with today's trends. Once they start to flower the flower heads continue through summer keeping your display alive. A little beauty well worth the money that will lift your spirits every time you look at it.

Pat the plant lover

North Wales

true

Attractive, hardy plant

5

Planted in a pot - useful for brightening up a corner.

The blonde gardener

Manchester

true

Superb

5

Keeps on and on flowering

Timmiry

Bristol

true

Great border plant

5

Great border filler, personal,choice, but good with Wargrave pink hardy geranium.

Dorset Daisy

S W England

true

Lovely border plant

5

Used to provide cover and colour at the edge of a bed with a large Pieris as backdrop. Works very well.

Gcm

Wildingham

true

Geranium'Johnson's Blue'

5.0 5

100.0

Why is my Johnsons Blue Geranium not flowering? There are lots of healthy leaves but few flowers. Might they need separating as they have been in for 15-20 years!!

Marie

Hello there There can be various reasons why a plant might not flower, such as too much shade or not enough water or nutrients but also if plants et too congested that can affect their growth. Ideally you need to lift and divide groups in the spring. Hope this helps.

Plant advice for 2 new beds please Hello, I need some help to decide which plants to put into two new areas please:- 1: A semi-circle flash bed at the front of the house, size approx 2m x 0.80m and 0.80m deep. I thought about the 3 following options for a small tree/bush in the middle:- a) Magnolia soulangeana, but I was worried about the size that it could grow to and possible problems with roots etc . Will it stay small if the size of the container is used to restrict it? b) Witch Hazel (Hamamelis intermediana 'Diane'). Will it spread too much? I think this is very pretty. c) Corylus avellana 'contorta' Then I also need to think about ground cover plants to help suppress weeds. I am only interested in fully hardy, easy to look after plants, could be with some flowers or coloured leaves. 2:- A thin path between neighbours (approx 2m x 0.40). My idea is to plant bamboo. I would love a modern thin run of bamboo with ground cover. My worry is which bamboos to use. I love the yellow, like Phyllostychys aureocaulis (Golden Grove) but not sure if it is strong enough as it could be exposed to some wind. I bought from you a couple of years ago the Phyllostychys aureosulcata 'Spectabilis' which I planted in pots but it died this year. I see on your website some other bamboos but I don't like them as much as their canes seems less exposed and have a lot more foliage. But possibly these would be a better alternative... ...? For the ground cover I as thinking of Ophiopogen nigrescen. Do you think these plants will be suitable, or have you any other suggestions? Thank you for your help, Galia

e moran

Hello Galia, All of the taller shrubs you mentioned for the semi-circular bed will get quite large, but their growth will be restricted (both in height and spread) if they are kept in a pot where their roots are restricted. For groundcover you could opt for any of the following:- Bergenia http://www.crocus.co.uk/search/_/search.bergenia/ Helleborus http://www.crocus.co.uk/search/_/search.helleborus/ Heuchera http://www.crocus.co.uk/search/_/search.heuchera/ Epimedium http://www.crocus.co.uk/search/_/search.epimedium/ Geranium http://www.crocus.co.uk/search/_/search.geranium/ Erica http://www.crocus.co.uk/search/_/search.erica/ As for the bamboos, even the most well behaved one (Fargesia murieliae) will spread to around 1.5m across so you should keep this in mind when planting it in such a confined space. Perhaps a better option would be one of our hedging plants, which can be cut back hard against the wall. Taxus http://www.crocus.co.uk/plants/_/shrubs/trees/hedging/conifer/bigger-trees/best-in-very-large-gardens-parks/taxus-baccata-/classid.6230/ or Ligustrum http://www.crocus.co.uk/plants/_/shrubs/hedging/ligustrum-ovalifolium-/classid.4093/ would be good options. I hope this helps. Helen Plant Doctor

Crocus Helpdesk

Is it still ok to be cutting back herbaceous perennials, Lavender and Caryopteris late in the year? Dear Crocus, I didn't have time to cut back to ground level all my herbaceous perennial plants and some shrubs in the autumn, due to work and family commitments. It's difficult to get out into the garden just now as I only have a little time at the weekend. Would it be too late for me to cut everything back still between now in December and the end of February e.g hardy Geraniums, Hostas,etc. and shrubs like Lavenders and Caryopteris? I really would appreciate your advice. Many thanks Pamela

Pamela Spiers

Hello Pamela, You can do the herbaceous perennials anytime between now and spring, but the Caryopteris and Lavenders should be tackled in spring. I hope this helps. Helen Plant Doctor

Crocus Helpdesk

Hi Helen, Thank you for your helpful information. The snow made the decision for me, it has lain for 4 weeks now. Kind Regards Pamela

Pamela Spiers

Plants for outside my front door Hi Crocus I live in a flat and have pots outside my external front door. What plants can I grow in pots, in semi shade that will attract the bees? Thank you for your help. Kind regards Guy

Guy Smith

Hello Guy, The following plants would be suitable for your pots. Forget-me-not (Myosotis species) Bellflowers (Campanula species) Cranesbill (Geranium species) Dahlia - single-flowered species and cultivars Hellebores (Helleborus species) Japanese anemone (Anemone ?? hybrida) Fritillaries (Fritillaria species) Grape hyacinth (Muscari species) Hyacinth (Hyacinthus orientalis) Siberian squill (Scilla siberica) Winter aconite (Eranthis hyemalis) Box (Buxus sempervirens) Christmas box (Sarcococca species) I hope this helps, Helen Plant Doctor

Crocus Helpdesk

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