Two days under fleece or one night possibly cold?

[PrideRavyn]

After advice on my poor dishevelled tomatoes, I have been fleecing my tomatoes and cucumbers at night in the greenhouse. The only problem is that I am away overnight tomorrow and have no one who can come in and fleece them for me and take it off the following morning. I will be gone from Sat morning to Sun evening, Saturday night is forecasted to be a minimum temperature of 7C, but whether that is to be believed I am not sure!! So the two options are either a) Leave the fleece on for the entire time - will they get enough light? It is quite thin, white fleece. or b) Leave the fleece off the entire time - lots of light, but will they be too cold overnight - to add to this, without the doors open the GH can get up to 30C during the day as it has sun on it from the early morning, so I would have to leave the door and window open a crack.

[SarzWix]

Ooh. That's a dilemma isn't it? Have you got an old net curtain that you can throw over the ridge to keep the temp down a bit? If you have, I'd leave the door shut and the fleece off. Otherwise, fleece on, but door/window open a bit, especially if it's forecast to be really sunny in the day.
The cucumbers are more at risk from the cold than the tomatoes I would say. Is it possible to fetch them indoors and put them on a windowsill?

[Dabacus]

a couple of days under fleece wont do them any harm, in fact it will give them a bit of shade from the bright sunshine.

[smallblueplanet]

What Dabacus said ^

Will be fine under fleece during the day.

[PrideRavyn]

I probably could bring the cucumbers in, as they are in manageable sized pots, the toms are in those big tomato pots you can get and wouldn't fit on a windowsill if I tried I shall bring the cucumbers in and leave the tomatoes under the fleece as unfortunately I don't have any net curtain. My greenhouse is one of those UPVC panel type, not real glass, the roof panels are opaque anyway rather than seethrough, only the side panels are see through, so I think that a net curtain may not make much difference since the roof is already 'shaded' so to speak, I shall put the fleece on and open the door/window I think, and hope they are ok!

[Rixy]

I would personally leave the fleece on and just open the roof vent rather than leaving the door open. I made the mistake of not fleecing some of my spare tomato plants this week and paid for it when the temp dropped to -2.5 in the greenhouse. All the spares I'd promised to people are now unfortunately in my compost bin .

[PrideRavyn]

Thought I would update everyone to let them know that the plants made it through the weekend without me! We even have some salad seeds sprouting, and a couple of the onion sets (newly resited thanks to useless focus instructions) have green bits showing! Eeee, exciting!