The timing info in this book is useful, if you live in Michigan's average area. Skip it if you live in Northern Michigan. Very little of the timing will apply to you. One other thing I didn't like was how many chemicals (of various sorts) they tell you to dump on your lawn. Every month it seems like they're telling you it's time to put one or two more on your lawn or in your beds. This type of gardening is not for me, and it scares me to think that people just strating with gardening might read this and think that they are all necessary.