A lot of leave curling is due to over watering. Also some varietie are prone to curl more than others.

What are the varieties that you are growing ? (Any Black Krim , eg?)
What kind of potting mix are you using :?
Are the pots outside now ? Have you been getting a lot of rain ?

There can be other cause for leave curling , like mite, aphids. Check the leaves very closely.
Wait for more comments.

Sey

Hi, thanks so much for getting back to me.

I believe the variety that I'm growing is Moneymaker, although it could be Gardeners Delight, I forgot which was which!

The plant is currently in the greenhouse and thats where it'll be staying!

I'm using a multi purpose compost, which all my other plants seem to be doing great in!

Thanks for you help, Sey ")

Ps, no sign of pests

Ooh another question, I have another plant (I can't remember what it is, as again I've forgotten what I actually planted.) I'll remember to actually make a note of what plant is what next year.

Anyway, I think it's a cucumber or courgette.

It seems healthy ish but the new growth in between stems has got brown/black tips and has stopped growing. Current leaves are getting bigger, but nothing else.

I know it must be so anoting having a newbie asking so many stupid questions.

Sorry guys x