Potatoes in bags
I'm a gardening newbie and I've planted a few chitted seed potatoes in grow bags today. Am I right in thinking that I only have to protect the leafy bits from frost when they start to poke through? And will a home-made cloche (recycled milk carton) do the trick for overnight/all day or should I use something else? fleece maybe? Or I was thinking, as they are in bags, I could easily stand them in the house or shed overnight when it's meant to be below zero.
As you can see, I really haven't got a clue! Any advice gratefully received.