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Aconitum 'Arendsii'

"Monkshood"

Aconitum 'Arendsii'

5 bare roots — £4.95

Spring planting season is currently closed 

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Delivery schedule

Orders placed before 1 March 2023
You can expect your order in March 2023

Orders placed 1 March - 15 April 2023
You can expect your order in April 2023

Orders placed 16 April - 15 May 2023
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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Shipping to the UK

UK orders over £50
Free shipping

UK orders under £50
£4.99

Northern Ireland orders under £50
£6.99

More info

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Description

Few plants in late summer and autumn provide such intense blue flowers as Aconitum 'Arendsii'. Blooming later than most other Aconitum species, this beautiful hardy perennial is sometimes referred to as the autumn-flowering Monkshood, (the name of which is given because its hooded flowers resemble the hoods worn by medieval monks). From July onwards, it produces dense spires of rich azure-blue flowers. Stems are generally thicker than most other forms of Aconitum, this plant is less likely to need staking! It is also suitable for growing in a patio container.

Aconitum is the perfect cottage garden plant, and it is great for planting in front of tall shrubs, or under garden trees – provided the soil does not become too dry. This plant has a special relationship with bumble bees, as they are one of the few insects that are able to reach the nectar, hidden deep inside the hooded flower. In trials, Aconitum carmichaelii (Arendsii Group) 'Arendsii' has performed so well that it has received an Award of Garden Merit from the Royal Horticultural Society (RHS).

Caution: Toxic if eaten, and it is best to use gloves when handling.

Key features

  • Good for cutting

  • Comes back every year

  • Attractive to wildlife

  • Loved by pollinators

  • Thrives well in full sun

  • In peat-free compost

  • RHS Award (AGM)

  • Fully hardy

  • Rodent resistant

  • Slug & snail repellent

Specs & details

  • Botanical name

    Aconitum carmichaelii (Arendsii Group) 'Arendsii'

  • Flower colour

    Blue

  • Leaf colour

    Green

  • Plant size

    1

  • Established height

    1.2-1.5m

  • Established spread

    30-50cm

  • Plant spacing

    10 plants per m2

  • Habit

    Upright
    Clump-forming

  • Life cycle

    Perennial

  • Hardiness

    Fully hardy

  • Years to establish

    2-3 years

  • Sunlight

    Full sun
    Partial shade

  • Position

    Sheltered

  • Suitable for

    Borders
    Cottage gardens
    Cut flower Gardens
    Woodland gardens
    Wildlife gardens

  • Soil acidity

    Any

  • Soil moisture

    Damp
    Free draining

  • Soil type

    Clay
    Loam
    Multipurpose compost

  • RHS Award (AGM)

    No
    Yes

  • Growing skill

    Easy to grow

  • Scented

    No

  • Pollinator-friendly

    Yes

  • Mouse resistant

    Yes

  • Rabbit resistant

    Yes

  • Deer resistant

    Yes

  • Toxicity

    Skin/eyes irritant
    Toxic if eaten

  • Squirrel resistant

    Yes

Plant calendar

JanFebMarAprMayJuneJulyAugSepOctNovDec
  • Planting
  • Flowering

Other information

  • Orders placed before 1 March 2023
    You can expect your order in March 2023

    Orders placed 1 March - 15 April 2023
    You can expect your order in April 2023

    Orders placed 16 April - 15 May 2023
    You can expect your order within 10 business days

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