Begonia 'Red Undies' (Begonia 'Red Undies')

Botanical name

Begonia 'Red Undies'

Other names

Begonia 'Red Undies', Begonia sinensis 'Red Undies', Begonia grandis subsp. sinensis 'Red Undies', Begonia 'Red Undies' (grandis)

Genus

Begonia Begonia

Variety or Cultivar

'Red Undies' _ 'Red Undies' is a mound-forming, tuberous, herbaceous perennial with branched stems bearing asymmetrical, narrowly ovate, toothed, olive to bright green leaves, red beneath, and clusters of pink flowers from early summer to early autumn.

Foliage

Deciduous

Fragrance

The flowers are scented

Habit

Cushion or Mound Forming

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Colour

Flower

Pink in Summer; Pink in Autumn

Foliage

Bright-green in Spring; Bright-green in Summer; Bright-green in Autumn

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How to care

Watch out for

Specific pests

Aphids , Caterpillars , Mealybugs , Tarsonemid mites , Thrips

Specific diseases

Powdery mildew

General care

Pruning

Remove faded leaves as necessary.

Propagation

Propagate from bulbils, leaf cuttings, or stem tip cuttings.

Propagation methods

Stem tip cuttings, Leaf cuttings

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Monthly care advice

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Where to grow

Begonia 'Red Undies' (Begonia 'Red Undies') will reach a height of 0.3m and a spread of 0.4m after 5-10 years.

Suggested uses

Mediterranean, Low Maintenance, Indoor, Cottage/Informal, Containers, Conservatory, Rock

Cultivation

Grow outdoors in well-drained, humus-rich, neutral or acid soil in partial shade. Best in indirect light in a frost-free area. Avoid waterlogged conditions. Mulch in winter in cold areas or grow in containers and overwinter indoors.

Soil type

Loamy, Sandy

Soil drainage

Well-drained

Soil pH

Acid, Neutral

Light

Partial Shade

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

Defra's Risk register #1

Plant name

Begonia 'Red Undies' (Begonia 'Red Undies')

Common pest name

GRSV

Scientific pest name

Groundnut ringspot virus

Type

Virus or Viroid

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

Virus affecting begonia; salad and other crops. First European outbreak detected in Finland in 2015.

Defra's Risk register #2

Plant name

Begonia 'Red Undies' (Begonia 'Red Undies')

Common pest name

Asain cotton leafworm; Cluster caterpillar; Fall armyworm; Rice cutworm; Taro caterpiller; Tobacco budworm; Tobacco caterpillar; Tobacco cutworm; Tobacco leaf caterpillar

Scientific pest name

Spodoptera litura

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

Regulated pest; frequently intercepted with occasional outbreaks which have been successfully eradicated in the UK.

Defra's Risk register #3

Plant name

Begonia 'Red Undies' (Begonia 'Red Undies')

Common pest name

Necrotic spot

Scientific pest name

Impatiens necrotic spot virus

Type

Virus or Viroid

Current status in UK

Present (Widespread)

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

2

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

3

General biosecurity comments

Pest of mainly ornamentals and vegetables; present in the UK; and covered by the EU listing of Tomato Spotted Wilt Virus. To be kept under consideration in light of a review of the EU listing.

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/