Does sun in winter matter?

I have this lovely very long garden, it is North facing although because it’s so long this doesn’t really matter as most of it isn’t shaded by the house.

However, the patio plus around 6-8 feet is shaded from about Nov – Mid March. In spring and summer it gets pretty much full sun, just not over winter and I’m wondering whether this matters?

I want to plant lots of spring bulbs in the areas just past the end of the patio. I have put a few daffodils and crocuses in the year before last but they haven’t seemed to do too well, a couple of flowers but not as much as I’d expect. More of them seem to be growing leaves but no flowers! Wondering if this is because they aren’t getting enough light in Feb/March?