I understand that we have to plant veg and herbs later up in the north but how do you know when to do it? It is still frosty here in the mornings. The back of the seed packets I am looking at all say roughly March, would this be too optimistic? If I do have to wait until is there anything I can plant at the moment? I do not have any cloches or fleece to protect plants. Could I get away with peas/carrots/onions at the moment? Getting excited now about planting the veg this year.