A related problem many backyard gardeners have with establishing the winter and overwintered garden is finding enough space for both the summer and winter crops. The nursery bed solves both these problems. Instead of trying to irrigate the entire area that will eventually be occupied by winter or overwintered crop at maturity, the seedlings are first grown in irrigated nurseries for transplanting in autumn after the rains come back.
First, you should know why a maritime Northwest raised-bed gardener named Steve
Solomon became worried about his dependence on irrigation. This book will guide you through all the processes of irrigation in your area.