Pak Choy in Greenhouse

http://durgan.org/2011/January%202011/2%20January%202011%20Pak%20Choy%20in%20Greenhouse/HTML/ 2 January 2011 Pak Choy in Greenhouse
To test conditions in the new greenhouse some Pak Choy was planted using my normal method of plastic covered containers. There were originally three seeds per pot, and they have been planted individually in containers.The seeds were planted on 10 November 2010, and appear to be thriving. The outdoor temperature has been from 5C to about minus 8C. The greenhouse has always been above freezing usually at the lowest about 5 C during the night. The 10,000 BTU Natural Gas heater seems to be adequate. The daytime temperature in the greenhouse rises considerably, particularly if the Sun is shining.