You should transplant into small pots once the tomato plants are large enough to handle and then finally plant out into large pots of around 12″ diameter, growbags or in soil about 18″ apart for final planting.

You should also note that the hybrid F1 plants are a little more difficult to grow from seeds, so if you prefer to err on the side of caution select an alternative variety for an easier time.

If you like to buy your tomatoes in plant form rather than as tomato seeds, you will find a range of Tomato Plants suitable for the UK climate using this link.

Includes Alicante, Apero, Beefeater and Cherry Belle tomato plants plus many more.

You should be looking to get these planted out around the beginning of April having ensured that there is no risk of a further frost. Frost will see off the hardiest tomato plant over night so make sure you do not risk losing your plants unnecessarily by keeping them sheltered until the weather forecast is favorable. Better a little late than not at all.