Excellent post dear friend @ garden-to-eat very interesting, if your intention is to have spinach all year, use the variety of specimen that corresponds to the summer, it is much more resistant for the summer and in winter you can sow the winter giants, That way you should not have any problems.
Thank you very much for sharing
I did try new zealand one summer but we did not like it so I just stick with traditional spinach and grow in the cool season. I have so much other stuff coming in during the summer I don't miss it that much. And much to cold here to grow anything in winter.