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Herbaceous Perennial

Aconitum carmichaelii (Arendsii Group) 'Cloudy'^PBR

monk's hood 'Cloudy'

A tall growing, herbaceous perennial, producing branched panicles of white hooded flowers flushed with pale puple-blue. These appear during autumn on stems that can reach over 1.5m high, above dark green, leathery, palmate to deeply-divided, lobed foliage

Synonyms

Aconitum 'Cloudy'

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Ultimate height

1.5–2.5 metres

Time to ultimate height

2–5 years

Ultimate spread

0.5–1 metres

Clay

Loam

Chalk

Sand

Moisture

Moist but well–drained

pH

Acid, Alkaline, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Full sun
Partial shade

Aspect

East–facing or South–facing or West–facing

Exposure

Sheltered

Hardiness
Hardiness ratings
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
H1a: under glass all year (>15C)
H1b: can be grown outside in the summer (10 - 15)
H1c: can be grown outside in the summer (5 - 10)
H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
H4: hardy through most of the UK (-10 to -5)
H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
H6: hardy in all of UK and northern Europe (-20 to -15)
H7: hardy in the severest European continental climates (< -20)

Botanical details

Family: Ranunculaceae
Native to GB / Ireland: No
Foliage: Deciduous
Habit: Columnar upright
Potentially harmful: TOXIC if eaten, avoid skin contact. Wear gloves and other protective equipment when handling. Pets: TOXIC if eaten, avoid skin contact - see the HTA guide to potentially harmful plants for further information and useful contact numbers
Genus: Aconitum can be herbaceous perennials or biennials with lobed leaves and racemes or panicles of showy, hooded flowers
Name status: Accepted

How to grow

Cultivation

Best grown in moisture-retentive fertile soil in partial shade but sun and most soils are tolerated. Staking may be necessary. See staking perennials for further advice

Propagation

Divide every third year in autumn or late winter to maintain vigour, although plants can be slow to re-establish

Suggested planting locations and garden types

Cottage and informal garden
Wildlife gardens
Architectural
Flower borders and beds

Pruning

Tall stems can be pruned down later in autumn when flowering is finished

Pests

May be susceptible to aphids

Diseases

May be susceptible to fungal stem rot and Verticillium wilt

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