Hello - newbie here from Yorkshire!

Hello everyone - just joined this forum.  We recently moved back to North Yorkshire and our new home has four raised beds and a greenhouse and keen to carry on from the previous owners in growing our own veg.  We have fruit trees too. 

I have just planted courgette and red pepper seeds in the greenhouse and sown carrots, cabbage, kohl rabi, radishes, beets and some courgette seeds outside.  Do I need to cover all these?

Welcome to the forum and congrats on your new house / garden.

Yes, definitely too cold for peppers and tomatoes outside or probably even overnight in an unheated greenhouse. We can get frost overnight until end of May easily.

I would not put cabbage outside without it being under cover to stop the pigeons (and, in due course, the cabbage white butterflies) from attacking the plants.