Answer: Although it's possible to start regular spinach indoors, it doesn't take well to transplanting. And since the plants are hardy, spinach seed can be sown outdoors about five weeks before the last frost, so that's the most common practice. New Zealand spinach is not a true spinach, and is not cold-hardy. It should be sown right into the garden after all danger of frost has passed. Since this is a heat-tolerant plant and doesn't bolt like regular spinach, there is no need to get it started early.
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