Temperature and light for herbs varies from herb to herb, but we generically run three different temperature “zones” during winter. Most herbs have a minimum light threshold to grow, with some needing a much higher level than others. The cost to deliver both light and heat to achieve plant optimum growth rates throughout the year is prohibitive in south eastern Australia so we just add heat, and hope that the sun shines brightly. Consequently, output per square metre falls by around 40% in winter. We take on customers based on our wintertime capacity because of this. The basic “temperature” zones (NOT CLIMATE) I would describe as:

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