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Aconitum 'Arendsii'

"Monkshood"

5 bare roots

Regular price £4.95

£0.99 each
Out of season
10 bare roots

Regular price £8.50

£0.85 each
Out of season
30 bare roots

Regular price £22.50

£0.75 each
Out of season

Product variants

Quantity

Spring planting season is currently closed

Available for (pre)ordering again in December

Free delivery on UK orders over £50

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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

Jan	Feb	Mar	Apr	May	June	July	Aug	Sep	Oct	Nov	Dec

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