Do plants need sunlight over winter?
Hi, I have lots of seedlings potted up that will need to get through winter. The smallest ones I will keep in a plastic greenhouse next to a brick wall for extra warmth and some will be kept close to the house. To protect them from rain I am going to make a sort of tent with sheet of blue tarpaulin. Obviously this will mean the plants are in quite a lot of shade so I wondered if this is ok? Or do they still need plenty of sunlight over the Winter?
It will be things like Delphiniums, Nepeta, Penstemon etc.