Q&A: Cloching courgettes

I am hoping to grow courgettes and other veg in pots. I was going to harden them off, then transplant them outside in mid-May. Will I still need a cloche?
Elizabeth Summers (30.3.07)

Elisabeth: Courgettes, cucumbers, tomatoes, peppers, French beans, runner beans, marrows, squashes, sweetcorn and any other vegetable plants that are likely to be damaged by a late frost cannot safely be planted out in the ground, or in containers outside, until late May in the south of England and probably early June in Scotland. You can plant them two to three weeks earlier if you cover them with glass or horticultural fleece at night, and also by day if there is a very cold wind blowing. The glass can be cloches, spare sheets of glass supported by short stakes, or for smaller plants, upturned jam jars.