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Hibiscus syriacus 'Meehanii' (Rose mallow 'Meehanii')

Beginner
skill rating
1 hour care
per year
2.5m
Max height
1.5m
Max spread
10-20 years
To maturity

Plant details

Botanical name

Hibiscus syriacus 'Meehanii'

Other names

Rose mallow 'Meehanii', Rose of Sharon 'Meehanii'

Genus

Hibiscus Hibiscus

Variety or Cultivar

'Meehanii' _ 'Meehanii' is a large, deciduous shrub with dark-green leaves margined with creamy-white. It bears single, mauve flowers with maroon centres from late summer to autumn.


Hibiscus syriacus 'Meehanii' is: Deciduous

Habit

Erect

Awards

RHS AGM (Award of Garden Merit)

Flower

Maroon, Purplish-pink in Summer; Purplish-pink, Maroon in Autumn

Foliage

Dark-green, Cream in Spring; Cream, Dark-green in Summer; Cream, Dark-green in Autumn

How to care

Watch out for

Specific pests

Aphids , Mealybugs , Thrips Aphids , Mealybugs , Thrips

Powdery mildew Powdery mildew

General care

Propagation methods

Layering, Semi-hardwood cuttings


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Where to grow

Hibiscus syriacus 'Meehanii' (Rose mallow 'Meehanii') will reach a height of 2.5m and a spread of 1.5m after 10-20 years.

Suggested uses

City, Coastal, Cottage/Informal, Beds and borders, Hedging/Screens, Containers, Wallside and trellises

Cultivation

Plant in moist but well-drained, neutral to alkaline soil in a sheltered, sunny position. Needs long, hot summers to flower well.

Soil type

Chalky, Clay, Loamy, Sandy (will tolerate most soil types)

Soil drainage

Moist but well-drained, Well-drained

Soil pH

Alkaline, Neutral

Light

Full Sun

Aspect

South, East, West

Exposure

Sheltered

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

Hardy (H4)

Companion plants

We do not currently have companion plants added for this plant.

Botanical name

Hibiscus syriacus 'Meehanii'

Other names

Rose mallow 'Meehanii', Rose of Sharon 'Meehanii'

Genus

Hibiscus Hibiscus

Variety or Cultivar

'Meehanii' _ 'Meehanii' is a large, deciduous shrub with dark-green leaves margined with creamy-white. It bears single, mauve flowers with maroon centres from late summer to autumn.

Foliage

Deciduous

Habit

Erect

Awards

RHS AGM (Award of Garden Merit)


Colour

Flower

Maroon, Purplish-pink in Summer; Purplish-pink, Maroon in Autumn

Foliage

Dark-green, Cream in Spring; Cream, Dark-green in Summer; Cream, Dark-green in Autumn


How to care

Watch out for

Specific pests

Aphids , Mealybugs , Thrips

Specific diseases

Powdery mildew

General care

Propagation methods

Layering, Semi-hardwood cuttings


Monthly care advice


Where to grow

Hibiscus syriacus 'Meehanii' (Rose mallow 'Meehanii') will reach a height of 2.5m and a spread of 1.5m after 10-20 years.

Suggested uses

City, Coastal, Cottage/Informal, Beds and borders, Hedging/Screens, Containers, Wallside and trellises

Cultivation

Plant in moist but well-drained, neutral to alkaline soil in a sheltered, sunny position. Needs long, hot summers to flower well.

Soil type

Chalky, Clay, Loamy, Sandy (will tolerate most soil types)

Soil drainage

Moist but well-drained, Well-drained

Soil pH

Alkaline, Neutral

Light

Full Sun

Aspect

South, 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

Defra's Risk register #1

Plant name

Hibiscus syriacus 'Meehanii' (Rose mallow 'Meehanii')

Common pest name

Cassava whitefly; Cotton whitefly; Sweet potato whitefly; Tobacco whitefly

Scientific pest name

Bemisia tabaci non-European populations

Type

Insect

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)

5

General biosecurity comments

Non-European populations of Bemisia tabaci pose an additional risk to European populations due to the potential for introducing non-European viruses.

Defra's Risk register #2

Plant name

Hibiscus syriacus 'Meehanii' (Rose mallow 'Meehanii')

Common pest name

Lance nematode; Nematode; Lance

Scientific pest name

Hoplolaimus spp.

Type

Nematode

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)

4

General biosecurity comments

Nematode species potentially affecting a wide variety of crops; prohibition of soil likely to mitigate risk substantially; keep under review in light of interceptions or findings should they occur in the EU.

Defra's Risk register #3

Plant name

Hibiscus syriacus 'Meehanii' (Rose mallow 'Meehanii')

Common pest name

Cassava whitefly; Cotton whitefly; Sweet potato whitefly; Tobacco whitefly

Scientific pest name

Bemisia tabaci European populations

Type

Insect

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)

4

General biosecurity comments

The UK has a protected zone in place for this pest which helps to mitigate the risk of entry and establishment. An EFSA opinion is currently being discussed at the EU Annexes Working Group which recommends further strengthening of the regulation.

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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This plant likes... Garden match
Soil types: Chalky, Clay, Loamy, Sandy (will tolerate most soil types) Tell us...
Soil drainage: Moist but well-drained, Well-drained Tell us...
Soil pH: Alkaline, Neutral Tell us...
Light: Full Sun Tell us...
Aspect: South, East, West Tell us...
Exposure: Sheltered Tell us...
Hardiness: Hardy (H4) Tell us...

DISCUSS THIS PLANT

Hibiscus Syriacus 'Meehanii' not flowering

Hi, I hope someone can help, when we moved into our current house there was one of these in the middle of the garden. It is growing very well and has doubled in size over the 3 years we have been… read more

There is 1 active discussion about Hibiscus syriacus 'Meehanii' (Rose mallow 'Meehanii')

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GARDENS WITH THIS PLANT

Main Rear Garden
Main Rear Garden
Kevin Griggs
My Garden
My Garden
barbardn
My Garden
My Garden
Robert Kay

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