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Ageratina altissima 'Chocolate' (Snakeroot 'Chocolate')

Beginner
skill rating
1 hour care
per year
1m
Max height
1m
Max spread
2-5 years
To maturity

Plant details

Botanical name

Ageratina altissima 'Chocolate'

Other names

Eupatorium ageratoides 'Chocolate', Eupatorium urticifolium 'Chocolate', Eupatorium rugosum 'Chocolate', Snakeroot 'Chocolate', Boneset 'Chocolate', White snakeroot 'Chocolate'

Genus

Ageratina Ageratina

Variety or Cultivar

'Chocolate' _ 'Chocolate' is a clump-forming, deciduous perennial with purple-brown stems bearing ovate to lance-shaped, toothed, purple-flushed, dark grey-green leaves and corymbs of small, fluffy, white flowerheads from summer to early autumn.


Ageratina altissima 'Chocolate' is: Deciduous

Habit

Bushy, Erect

Flower

White in Summer; White in Autumn

Foliage

Flushed purple, Grey-green in Spring; Grey-green, Flushed purple in Summer; Grey-green, Flushed purple in Autumn

How to care

Watch out for

Pests

Resistant to damage by deer (Deer Resistant B - Seldom Severely Damaged).

Specific pests

Aphids , Slugs Aphids , Slugs

Diseases

Generally disease-free.

General care

Pruning

Cut back spent flower stems to base.

Propagation methods

Division


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Where to grow

Ageratina altissima 'Chocolate' (Snakeroot 'Chocolate') will reach a height of 1m and a spread of 1m after 2-5 years.

Suggested uses

Beds and borders, Cottage/Informal, Prairie planting, Wildlife

Cultivation

Plant in moist, alkaline soil in partial shade. Frost may damage new growth. Resistant to damage by deer.

Soil type

Chalky, Clay, Loamy

Soil drainage

Moist but well-drained, Moisture-retentive

Soil pH

Alkaline, Neutral

Light

Partial Shade

Aspect

East, West

Exposure

Sheltered

UK hardiness Note: We are working to update our ratings. Thanks for your patience.

Hardy (H4)

Companion plants

Botanical name

Ageratina altissima 'Chocolate'

Other names

Eupatorium ageratoides 'Chocolate', Eupatorium urticifolium 'Chocolate', Eupatorium rugosum 'Chocolate', Snakeroot 'Chocolate', Boneset 'Chocolate', White snakeroot 'Chocolate'

Genus

Ageratina Ageratina

Variety or Cultivar

'Chocolate' _ 'Chocolate' is a clump-forming, deciduous perennial with purple-brown stems bearing ovate to lance-shaped, toothed, purple-flushed, dark grey-green leaves and corymbs of small, fluffy, white flowerheads from summer to early autumn.

Native to

Garden origin

Foliage

Deciduous

Habit

Bushy, Erect


Colour

Flower

White in Summer; White in Autumn

Foliage

Flushed purple, Grey-green in Spring; Grey-green, Flushed purple in Summer; Grey-green, Flushed purple in Autumn


How to care

Watch out for

Pests

Resistant to damage by deer (Deer Resistant B - Seldom Severely Damaged).

Specific pests

Aphids , Slugs

Diseases

Generally disease-free.

General care

Pruning

Cut back spent flower stems to base.

Propagation methods

Division


Monthly care advice


Where to grow

Ageratina altissima 'Chocolate' (Snakeroot 'Chocolate') will reach a height of 1m and a spread of 1m after 2-5 years.

Suggested uses

Beds and borders, Cottage/Informal, Prairie planting, Wildlife

Cultivation

Plant in moist, alkaline soil in partial shade. Frost may damage new growth. Resistant to damage by deer.

Soil type

Chalky, Clay, Loamy

Soil drainage

Moist but well-drained, Moisture-retentive

Soil pH

Alkaline, Neutral

Light

Partial Shade

Aspect

East, West

Exposure

Sheltered

UK hardiness Note: We are working to update our ratings. Thanks for your patience.

Hardy (H4)

USDA zones

Zone 9, Zone 8, Zone 7, Zone 6, Zone 5, Zone 4

Defra's Risk register #1

Plant name

Ageratina altissima 'Chocolate' (Snakeroot 'Chocolate')

Common pest name

Scientific pest name

Coleosporium eupatorii

Type

Fungus

Current status in UK

Absent

Likelihood to spread to UK (1 is very low - 5 is very high)

2

Impact (1 is very low - 5 is very high)

3

General biosecurity comments

A rust affecting Pinus spp. Pathway for entry mitigated by EU regulation of bonsai imports. The trade of pines and other hosts need to be monitored.

About this section

Our plants are under greater threat than ever before. There is increasing movement of plants and other material traded from an increasing variety of sources. This increases the chances of exotic pests arriving with imported goods and travellers, as well as by natural means. Shoot is working with Defra to help members to do their part in preventing the introduction and spread of invasive risks.

Traveling or importing plants? Please read "Don't risk it" advice here

Suspected outbreak? Click here for contact details to report to the relevant authority.

Date updated: 7th March 2019 For more information visit: https://planthealthportal.defra.gov.uk/

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Bowman's Root and Eupatorium 'Chocolate'

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This plant likes... Garden match
Soil types: Chalky, Clay, Loamy Tell us...
Soil drainage: Moist but well-drained, Moisture-retentive Tell us...
Soil pH: Alkaline, Neutral Tell us...
Light: Partial Shade Tell us...
Aspect: East, West Tell us...
Exposure: Sheltered Tell us...
Hardiness: Hardy (H4) Tell us...

DISCUSS THIS PLANT

Eupatorium Chocolate weak growth

I bought this at Malvern show in 2011. It is a moist but well drained part shade but refuses to grow...Has grown to about 10 inches tall in spring but no progress at all since late April ? Any ideas… read more

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