Freezing bulbs: Duration vs. low temperature
Aad van Beek (Tue, 15 Jan 2013 07:32:57 PST)

When I still had my vegetable garden I always used "vliesdoek" to protect from light frost in autumn and spring.
According to a manufacturer in Holland the translation is crop cover fleece (made of UV stabilized polypropylene spunbonded nonwoven).
It is very light-weighted and the leaves don't get the freeze burns caused by wrapping the plants in plastic. It is also very cheap.

Aad van Beek