Flame Seedless
Grape (Greenhouse) in the UK

You're looking to sow grape seeds in March or April, starting them off inside in pots. Pop them about 1 cm deep in some good seed compost, keeping them nice and warm, around 18-20°C, maybe on a heat mat if you've got one. It takes a good while, about 170 days from seed to first harvest, so patience is key. The best way, like I say in the GrowMore CookMore app, is to get the roots planted outside the greenhouse, with the vine trained to grow inside; gives them plenty of room to stretch their roots properly.

Once your little grape plants are big enough to handle, prick them out into individual pots. When they're a bit more established, get them ready for their permanent home. Remember that trick: plant the roots outside the greenhouse, then train the vine to come inside through a small opening. This gives the roots a steady temperature and moisture, while the vine gets that lovely greenhouse warmth. Make sure you've got strong supports in place for the vine to climb, it'll get heavy.