I turn to All Year Round quite a bit for festival preparation, it is a festival book and it has a ton of recipes and crafts. However, this book is a decidely anthroposophic Christian perspective. It is a book that can be used through all the years, it is not especially a Kindergarten book.
The Children's Year is crafts divided by seasons, but many of the projects involve knitting and sewing, so that is something to be aware of if you are not proficient in these areas.
Melisa Nielsen's Before the Journey is essentially the story of four separate women of different religious and socio-economic backgrounds (one for each season) and how Waldorf looks in their home. It has recipes and crafts as well, but is in more of a story format as each of these four women journal about their lives and their journey into Waldorf.
Donna Simmons' Kindy book is invaluable. You will use it for all years of Kindy, including the six year old Kindergarten Year. It does have craft suggestions, how to create rhythm in your home, songs, a few stories and suggestions for how to bring those traditional components of Waldorf Kindergarten into your home life.
i like Earthways as well, but I think the age recommendations for the crafts are too low and the projects are enjoyed more by children older than what the age recommendation says. Earthways also has good ideas for the seasonal Nature Table...
A Child's Seasonal Treasury may be out of print? I have been hearing that from folks. Your local library may have it.