Geranium 'Plenum'
Geranium 'Plenum'
Geranium 'Plenum'
Geranium 'Plenum'
Geranium 'Plenum'
Geranium 'Plenum'
Geranium 'Plenum'

Geranium 'Plenum'

"Double-flowered cranesbill"

Geranium 'Plenum'

3 bare roots — £8.85

Spring planting season is currently closed 
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Delivery schedule

Orders placed until 29 February 2025
You can expect your order in February/March 2025

Orders placed 1 March - 15 April 2025
You can expect your order in March/April 2025

Orders placed 16 April - 15 May 2025
You can expect your order within 10 business days

Available for (pre)ordering again in December
Free delivery on UK orders over £50
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UK orders over £50
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UK orders under £50
£4.99

Northern Ireland orders under £50
£5.99

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Description

Indeed, Geranium 'Plenum' is a double-flowered cranesbill! Cranesbill geraniums are loved for their resilience, tolerance to many conditions, hardiness and long flowering period. The only difference with this unique variety is that it has extra petals and flower power! The vivid purple ruffly blooms of double Geranium 'Plenum' will delight the eye when they burst into action in late spring, sat on their soft green cushion of foliage. Over the years, enjoy more and more from this plan t as it gradually spreads to pad out its space in the border.    

Geranium himalayense 'Plenum' really isn't fussy, but given the choice it would love to grow in a space which has some light shade for part of the day. Soil type is not a problem for this double-flowered geranium, as it will usually anchor itself into all types including sandy, clay, loam or chalky soils. It finished flowering in mid summer, at which point you can cut it back completely and fresh new foliage will soon appear. In a good year (long summer) you might be treated to a second flush before autumn!

Key features

  • Perfect for pots

  • Comes back every year

  • Attractive to wildlife

  • Loved by pollinators

  • In peat-free compost

  • Low maintenance

  • Drought tolerant

  • Fully hardy

  • Rodent resistant

Specs & details

  • Botanical name

    Geranium himalayense 'Plenum'

  • Flower colour

    Purple

  • Plant size

    1

  • Established height

    20-30cm

  • Established spread

    20-30cm

  • Plant spacing

    7 plants per m2

  • Leaf colour

    Green

  • Habit

    Spreading
    Upright

  • Life cycle

    Perennial

  • Hardiness

    Fully hardy

  • Years to establish

    1-2 years

  • Sunlight

    Full sun
    Partial shade

  • Position

    Sheltered
    Exposed

  • Suitable for

    Pots
    Borders
    Gravel gardens
    Cottage gardens
    Wildlife gardens
    Large containers
    Coastal gardens
    Low maintenance gardens

  • Soil acidity

    Any

  • Soil moisture

    Free draining
    Dry

  • Soil type

    Loam
    Sandy
    Clay
    Multipurpose compost
    Loam-based compost

  • RHS Award (AGM)

    Yes

  • Growing skill

    Easy to grow

  • Scented

    No

  • Pollinator-friendly

    Yes

  • Mouse resistant

    Yes

  • Rabbit resistant

    No

  • Deer resistant

    No

  • Toxicity

    No report

Plant calendar

JanFebMarAprMayJuneJulyAugSepOctNovDec
  • Planting
  • Flowering

Useful information

    • Soak the Geranium 'Plenum' roots in water for 3-6 hours prior to planting

    • Plant your "Double-flowered cranesbill" bare roots into temporary pots with a multipurpose compost in spring and grow-on in a sheltered spot outdoors

    • Choose a pot which comfortably fits the bare roots. Some have a noticeable crown which should be just below the soil surface with any top growth exposed. Some varieties are a length of root which should be planted lengthways and shallowly (1-2cm deep).

    • Plant out into borders or permanent containers in late spring or early summer once in full growth. Choose a position in sun or shade depending on the variety.

    Read all planting & care instructions

  • Orders placed until 29 February 2025
    You can expect your order in February/March 2025

    Orders placed 1 March - 15 April 2025
    You can expect your order in March/April 2025

    Orders placed 16 April - 15 May 2025
    You can expect your order within 10 business days

Perennials in 1 minute

The beauty of perennial plants doesn’t just lie in their long-lasting flowers and sturdy, resilient nature, but it’s their sheer determination to keep on coming back stronger every year —in year one they’re good, but in future years they’re even better!

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