Viburnum dentatum 'Synnestvedt' (Southern arrowwood 'Synnestvedt')

Botanical name

Viburnum dentatum 'Synnestvedt'

Other names

Southern arrowwood 'Synnestvedt', American arrow wood 'Synnestvedt', Southern arrow wood 'Synnestvedt', Viburnum dentatum 'Chicago Lustre'

Genus

Viburnum Viburnum

Variety or Cultivar

'Synnestvedt' _ 'Synnestvedt' is an upright, rounded, deciduous shrub with ovate, veined, coarsely toothed, glossy, dark green leaves, turning reddish-purple in autumn, and, in late spring and early summer, flattened clusters of tiny, tubular, ceamy-white flowers followed by blue-black fruit.

Native to

Garden origin

Foliage

Deciduous

Fragrance

Flowers are very fragrant.

Habit

Rounded, Upright

Toxicity

Fruit can cause a mild stomach upset.

---

Colour

Flower

Cream in Spring; Cream in Summer

Foliage

Dark-green in Spring; Dark-green in Summer; Reddish-purple in Autumn

---

How to care

Watch out for

Specific pests

Aphids , Viburnum beetle

Specific diseases

Leaf spot

General care

Pruning

Pruning group 8. Tolerates hard pruning.

Propagation methods

Softwood cuttings

---

Monthly care advice

---

Where to grow

Viburnum dentatum 'Synnestvedt' (Southern arrowwood 'Synnestvedt') will reach a height of 3.2m and a spread of 3.2m after 5-10 years.

Suggested uses

Beds and borders, Cottage/Informal, Low Maintenance

Cultivation

Grow in most moist but well-drained soils in full sun or partial shade. Avoid wet sites. Plant with another V. dentatum for better fruit production.

Soil type

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

Soil drainage

Moist but well-drained, Well-drained

Soil pH

Acid, Alkaline, Neutral

Light

Partial Shade, Full Sun

Aspect

North, South, East, West

Exposure

Exposed, Sheltered

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

Hardy (H4)

USDA zones

Zone 8, Zone 7, Zone 6, Zone 5, Zone 4, Zone 3

Defra's Risk register #1

Plant name

Viburnum dentatum 'Synnestvedt' (Southern arrowwood 'Synnestvedt')

Common pest name

Ramorum leaf blight; Ramorum shoot dieback; Rhododendron twig blight; Sudden oak death

Scientific pest name

Phytophthora ramorum

Type

Oomycete

Current status in UK

Present (Limited)

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

4

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

4

General biosecurity comments

Pathogen of larch and other hosts subject to EU emergency legislation. A containment strategy is in place in the UK; reflecting its presence in wider environment/forestry settings in some areas. EU regulatory status is under review.

Defra's Risk register #2

Plant name

Viburnum dentatum 'Synnestvedt' (Southern arrowwood 'Synnestvedt')

Common pest name

assam thrips; castor thrips; chilli thrips; yellow tea thrips

Scientific pest name

Scirtothrips dorsalis

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

EU listed pest for citrus but highly polyphagous and intercepted on a number of hosts. EU legislation should be updated to reflect wider host list.

Defra's Risk register #3

Plant name

Viburnum dentatum 'Synnestvedt' (Southern arrowwood 'Synnestvedt')

Common pest name

pink wax scale; red was scale; ruby wax scale

Scientific pest name

Ceroplastes rubens

Type

Insect

Current status in UK

Absent

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

3

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

3

General biosecurity comments

Based on its biology and low potential impact continued action on this pest in the UK would not be considered appropriate. It is likely to be of more concern to southern Member States of the EU; as it is an economic pest of citrus.

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