My EE's and Astralorp girls are 20 and 21 weeks old. They are not laying yet. My question is, if they don't start laying before the end of September, will they not lay until next spring? I was thinking of adding light to the coop to make them think it's still summer until they start to lay and then slowly back down the light to normal daylight hours. I am hoping that once they start, they will lay through the winter. What does everyone think?