My outdoor tomatoes are wrapped in a ‘four poster bed’ to try and keep them warm. Canes have been placed at the edges of the raised bed, then a double thickness of white fleece pegged around them. This stays up 24 hours and has been useful to protect them from the cold high winds.
Every night, a single fitted sheet is pegged into place over the top. It helps with the cold overnight temperatures we have been having. The sheet is removed every morning to allow light onto the tomatoes.
The tomatoes and peppers living in the greenhouse are growing better.
It is ridiculous, almost halfway through June and they, as am I most days, are still dressed for winter!