In a message dated 3/8/00 9:05:32 PM, owner-gardeners-digest@globalgarden.com writes: << I'm in zone 9b and I have my on the south side of the house and cover it with visqueen on nights a freeze is expected. >> We're in zone 9B as well, SF Bay Area and we put those little clear Christmas lights on the citrus and avocados this year and they weren't harmed at all by the frosts! We have 20 citrus from the temperamental Variegated Pink Eureka to the tender Kaffir Lime (Magroot). The year before we covered them, but had so many hard frosts in a row we lost almost all. Mary-Anne