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Fruit EdibleConservatory Greenhouse

Vitis vinifera 'Schiava Grossa' (G/B/D)

grape 'Schiava Grossa'

Reliable, widley grown, purple-black dessert grape for cultivation in an unheated greenhouse producing high yields of sweet, juicy purple-black grapes in late summer and early autumn

Synonyms

Vitis vinifera 'Black Hamburg'
Vitis 'Trollinger'
see moreVitis vinifera 'Frankenthaler'
Vitis vinifera Black Hamburgh
Vitis Black Hamburgh

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Ultimate height

8–12 metres

Time to ultimate height

5–10 years

Ultimate spread

Wider than 8 metres

Chalk

Loam

Sand

Moisture

Well–drained

pH

Alkaline, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

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)

Botanical details

Family: Vitaceae
Native to the UK: 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

How to grow

Cultivation

Grow indoors in a greenhouse or conservatory to produce good yields of fruit, for detailed advice see indoor grape cultivation

Propagation

Propagate by hardwood cuttings in late autumn or winter, or by softwood cuttings or semi-ripe cuttings from late spring to midsummer or grafting onto Phylloxera resistant rootstocks

Suggested planting locations and garden types

Mediterranean climate plants
Wall side borders
Climber and wall shrubs
Conservatory and greenhouse
Edible fruit

Pruning

Pruning is required to encourage flowering and fruiting, and to increase air circulation and so reduce the risk of disease: see grape pruning and training

Pests

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

Diseases

May be susceptible to Powdery mildews, grey moulds, honey fungus and virus diseases. For further advice see grapevine diseases

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