What to do now
This is a great time to plant a vine. They’re frost hardy and can be grown in a cool greenhouse or outside.
The difference between the types is down to the length of time they take to ripen. ‘Greenhouse’ grapes tend to need a longer ripening time and won’t usually ripen outside. Being in a greenhouse allows them gentle heat and avoids rot-inducing heavy dew and rain in autumn.
If your greenhouse is heated to protect other plants, such as fuchsias and pelargoniums, or to produce bedding and tomatoes in spring, then this will also allow the grapes to start growth earlier in spring, extending the season further, which is necessary for some of the older, Muscat-type grapes, valued for their honey-sweet taste.
Look at the more modern varieties if you want seedless grapes; many have been bred for resistance to mildew too.
Grapes are self-fertile so you only need one variety, but buy from a reputable supplier so you know what variety it is and if it’ll grow and ripen in the UK.
You can grow a vine from the pip of a seeded grape and it’ll grow outside, but your chances of ge ing edible fruit is small.
A grapevine makes ideal greenhouse shading!
Try growing vines trained in a greenhouse with their roots outside