Cucumber plants

Hi

Is there a problem with cucumber plants this year my seeds all came up and prompty died and two new ones which I brought from Notcutts are now starting to wither?

They may be over-watered-cucumbers are notorious for neck rot where the stem meets the soil-check that out

Ok thank you will do

I had 4 plants doing well.

After re potting the 4, one has neck rot. If this is the problem, first the leaves go limp, I thought frost had got to it but then the stem started to go brown. Watering from the bottom helps prevent stem rot and also having a layer of vermiculite around the stem absorbs water preventing water from soaking the stem.      

Alternatively you may have sown your seeds to early and the bought plants could be wilting due to the changes in temp from shop to home.