In 2017 I moved from Toowoomba to Geham north of Toowoomba. I set up a temporary shade house for my Clivia collection. During the Winter I had a negative 7°C morning and as a result I lost over 250 plants. I called NetPro in Stanthorpe and spoke to Glenn McRae about options to protect my plants. Glen recommended their Frost Cloth Spun-bonded Polypropylene ("fleece")
White, 30gsm (grams per square metre). This year I had a negative 6.5°C and under the frost cloth cover the temperature remained above zero and I had no damage.