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Grapevines in Greenhouses

German grapes from greenhouses have long ago been out-competed by cheap imported grapes. Part of the demise of that grape cultivation era also came about by the much feared powdery mildew, a disease which started in an English glasshouse around 1850. However, with the new resistant grapevine varieties, every enthusiast can again produce delicious table grapes under glass, on carports, porches, or in plastic greenhouse tents.

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Particularly suitable varieties for greenhouse cultivation are "Blue Muscat" and "Birstaler Muscat," as they thrive without ever getting rainwater or dew on their leaves and without requiring sulphuric spraying. Their cultivation can be shared with other, low-light loving plants.

 

The vine is usually trained into a diagonal cordon, a form derived from the vertical cordon. The side shoot positions are spur pruned.

Grapevines under glass
Vine in greenhouses, schematic sketch
Grapevines in the glasshouse, nursery Sierhagen / Schleswig-Holstein
Grapevines in the glasshouse
Grapevines under a carport
Grapevines under a carport
Often the vines were planted just outside the glasshouse, then trained to the inside
Historic depiction of grapevines in greenhouse
Restoration of ancient greenhouse grapevines on tension cables -- see photo above
Greenhouse grapevines, castle garden, Diesbar-Seusslitz / Saxony
Ripening grapes in the glasshouse, "diagonal cordon," spur pruned.
Table grapes in greenhouse, castle garden, Disbar-Seusslitz / Saxony
Grapevines under an arbour
Grapevine greened arbour
Vine cordons in a greenhouse: the stems were laid down in winter and lime-washed to reflect the sunlight and prevent premature bud burst.
Glass house with vine, historic depiction