I know the Primrose (Primula vulgaris) is one of the earliest flowering of the spring plants, they're usually in flower from about the end of February / beginning of March, but surely the first week of January is taking the piss. That said I do love them, especially when carpeting an ancient woodland. Years ago a friend and I used to make a lot of flower and fruit wines, and on one occasion came across a secluded (I mean really secluded, to the point of being hardly accessible) wood in Purbeck packed with Primroses, where we collected enough flowers to make a gallon of wine each (you didn't need that many really). The wine was very nice as I remember, and even after we'd collected you'd not have known we'd been there. You don't have to have a destructive impact on nature to enjoy her bounties. I've been back to the wood many times since and it still hosts a thriving Primrose community.