My 2 hens are about 5 months old. They haven't started laying yet, and I'm thinking at this point, it'll be spring before they start. I think the days are getting too short. I do not plan to add artificial light, I like to let nature take its course, and I'm all right with waiting. Wouldn't it be better for them anyway, if they are more mature before they start laying? Seems like it to me.