Vicia faba 'Dreadnought' (Broad bean 'Dreadnought')

Botanical name

Vicia faba 'Dreadnought'

Other names

Broad bean 'Dreadnought', Fava bean 'Dreadnought'

Genus

Vicia Vicia

Variety or Cultivar

'Dreadnought' _ 'Dreadnought' is an erect annual, typically grown as a vegetable crop, with square stems bearing pinnate leaves divided into broadly lance-shaped, grey-green leaflets and fragrant, black-marked, white flowers in spring followed by long, green pods containing edible white beans, ready for harvest in early summer.

Foliage

Deciduous

Fragrance

Strongly scented flowers.

Habit

Climbing

Awards

RHS AGM (Award of Garden Merit)

---

Colour

Flower

White in Spring

Foliage

Grey-green in Summer

---

How to care

Watch out for

Specific pests

Aphids , Bean seed fly , Pea and bean weevil , Seed beetle , Slugs , Snails , Thrips

Specific diseases

Chocolate spot , Downy mildew , Foot and root rot , Halo blight , Powdery mildew

General care

Pruning

Provide support for growing stems. Pinch the top 5 cm off the top of the stem as the first beans begin to form. Can be harvested early and cooked like mangetout.

Propagation methods

Seed

---

Monthly care advice

---

Where to grow

Vicia faba 'Dreadnought' (Broad bean 'Dreadnought') will reach a height of 1.2m and a spread of 0.45m after 1-2 years.

Suggested uses

Add to salads, Beds and borders, Flower Arranging, Wallside and trellises

Cultivation

Plant in fertile, well-drained soil in sun with shelter from strong winds. Do not plant where beans grew the previous year. Incorporate well-rotted manure before planting & apply a general purpose fertiliser 1 week before planting. Support stems.

Soil type

Loamy, Sandy

Soil drainage

Well-drained

Soil pH

Acid, Alkaline, Neutral

Light

Partial Shade, Full Sun

Aspect

South, West

Exposure

Sheltered

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

Hardy (H4)

Defra's Risk register #1

Plant name

Vicia faba 'Dreadnought' (Broad bean 'Dreadnought')

Common pest name

American serpentine leaf miner; chrysanthemum leaf miner

Scientific pest name

Liriomyza trifolii

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)

3

General biosecurity comments

Regulated pest already subject to review at the EU level (2013). Regularly intercepted in the trade.

Defra's Risk register #2

Plant name

Vicia faba 'Dreadnought' (Broad bean 'Dreadnought')

Common pest name

Lima-bean pod borer; Pea pod borer

Scientific pest name

Etiella zinckenella

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)

3

General biosecurity comments

Moth pest of peas and beans intercepted in the UK on plant produce with some interceptions now being made on pepper. Unlikely to pose a significant threat; as would not survive UK winters outdoors and suitable hosts are not grown in protected cultivation. Maintain a watching brief for any reports of E. zinckenella on peppers; especially if from Europe and/or glasshouses.

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/