Help! My cucumbers are miserable

I moved my cucumber seedlings from windowsill propagators into their own pots and into my outdoor (unheated) greenhouse. Since then they're limp and looking particularly miserable!
They're watered and I opened up the greenhouse today so they didn't get too hot (it was approaching 30c in there earlier) but other than that I'm not sure what's happened or what I've done wrong. Any advice?

 

Where are you Sarah?
If you are in the UK you sowed them about two months too early.

 

I'd agree with Pete. Way too soon if you're in the UK. I haven't grown them for a couple of years, but I used to leave it until mid May. Basically, it's too cold right now.

 

Yea, UK. That's weird though, as the packet I read said they could be started Feb/March but planted out mid May onwards. Does that include transferring to a greenhouse then? You live and learn

If I bring them back indoors will that revive them?

 

The earlier date will be for growing on in a heated greenhouse.

Should pick up if they haven't been frosted, might take a week or so though

 

Oh I seeee.. wish it would have said so that numpties like me don't make silly mistakes

 

In that case then, are sprouts and tomatoes ok in there now?

 

Personally I'd discard the Cues, its way too early without masses of heat and light.
Sprouts are hardy, so no problem but still way too early, bearing in mind they wont crop until next winter.
Toms OK, but will need heat until at least mid April even in a greenhouse.

 

Sarah, minimum overnight temperature for tomatoes in a greenhouse is 7C and even at that temperature they are only just comfortable. The leaves turning purple underneath are the first signs that they are suffering.

Cucumbers are very temperamental and really don't like the cold as Pete, Freddy and Zigs have said.

 

Happy to report that most of my cucumber seedlings are now slowly starting to recover. One looks like it's beyond help but I'm going to keep them indoors now and see what happens with them. Can see me putting up some shelves in my store room!