Vitis 'Seyval Blanc' (O/W)

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grape 'Seyval Blanc'

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Synonyms

Vitis vinifera 'Seyval Blanc', Vitis Seyve Villard 5276

Fruit Edible Climber Wall Shrub
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A woody deciduous climber, with shallowly lobed, toothed bright green leaves. A reliable, heavy cropping variety, usually used for wine-making, with small, fragrant greenish flowers in early summer followed by large bunches of white grapes in autumn. Suitable for outdoor cultivation in warmer regions

Position

Full sun

Soil Types

Chalk, Clay, Loam, Sand

Max Height

4-8 metres

Max Spread

2.5-4 metres

Size

Time to Maturity
5–10 years
Max Spread
2.5-4 metres
Max Height
4-8 metres

Growing Conditions

Chalk Clay Loam Sand
Moisture
Moist but well–drained or Well–drained
pH
Alkaline or Neutral

Position

Full sun
Aspect
South–facing or West–facing
Exposure
Sheltered
Hardiness

Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

  • H1A: under glass all year (>15C)
  • H1B: can be grown outside in the summer (10 - 15)
  • H1C: can be grown outside in the summer (5 - 10)
  • H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
  • H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
  • H4: hardy through most of the UK (-10 to -5)
  • H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
  • H6: hardy in all of UK and northern Europe (-20 to -15)
  • H7: hardy in the severest European continental climates (< -20)
H5

Colour & Scent

Fragrance Flower
Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Vitaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Climbing
Potentially harmful
Pets (dogs): Harmful if eaten whether fruits are edible or ornamental - for further information and contact numbers regarding pets, see the HTA guide to potentially harmful plants
Genus
Vitis are vigorous deciduous climbing shrubs with tendrils and attractively lobed leaves, insignificant green flowers followed by often edible fruits; some have excellent autumn foliage colour
Name Status
Accepted
Horticultural Group

Horticultural Classification Codes

Horticultural Classification Codes are often given to genera which have a large number of species or cultivars. They are used to categorise cultivated plants based on specific, shared characteristics such as shape, colour, size or flowering time, and can be displayed as letters or numbers

For example:
Dahlia ‘Sunset Kate (Sin) = Single flower
Rosa ‘Marigold’ (HT) = Hybrid Tea

Suitable for outdoor cultivation

How to Grow

Cultivation

Grow in full sun, in well-drained, humus-rich, preferably neutral to slightly alkaline soil. Keep watered in dry spells. See grape cultivation

Propagation

Propagate by layering in autumn or hardwood cuttings in late winter

Suggested planting locations and garden types

  • Cottage and informal garden
  • Climber and wall shrubs
  • Conservatory and greenhouse
  • Edible fruit
  • Wall side borders

Pruning

Pruning group 11 in midwinter, and in midsummer to restrict growth if necessary. See grape pruning

Pests

May be susceptible to grapevine blister mite, glasshouse red spider mite, brown scale, woolly vine scale and spotted wing drosophila (fruit fly)

Diseases

May be susceptible to powdery mildews, grey moulds, honey fungus and virus diseases; see grapevine diseases