Could it be a mould or mildew, the weather has been awful, in a gh I find cucumbers dislike any fluctuations

Yes I heard on gardeners world that they hate their roots standing in water - and that's all we've had since the hose pipe ban!

Frost bite! :o))

No just kidding but it is cold related!

Lack of light again I would say,when a plant does not photosynthesise the leaves turn a creamy colour.

The reason for the reduced photo synthesis is lack of sunshine,low light levels (dull) and relatively low temperatures.

Come to think of it......I'm going a bit yellow round the edges too..... In my case it is; "sad syndrome"

In need of a bit of sunshine myself!

Went down the allotment this morning to do some planting out ( yes I have not got all my stuff planted out yet) it was so miserable I just about turned and came home :o((

So you see the lack of sunshine affects more than plants!

Agree with Teegee - cold temperatures particularly will cause leaves to whiten on tender plants.

Thank you for your replies, Pamg and Cammomile - answers are always so prompt on GOY! I haven't seen the plants myself, I thought perhaps it might be a nutrient deficiency, or the weather, but I have absolutely no experience of growing cucumbers. We haven't had as much rain as other areas, but it has been cold. I shall pass on your suggestions - many thanks again.

Thank you so much Teegee and Bamboo. I knew I would get lots of advice - brilliant. I shall pass on all the comments. Certainly know what you mean about lack of sunshine, Teegee! And it has been very dull and cool here! (Heating back on this w/e!) None of the flowering plants are responding very well. Let's hope we get some more sunshine soon!

I usually buy a couple of plants for the gh but its been so miserable this year I haven't yet....

I'm looking out on a grey, damp garden - I have to look at my photos to remind me what it looks like in the sun!!