Temperatures to Freeze Plants
Name: John S.
Date: Thursday, June 06, 2002
As part of a science report on the differences in
climate zones, my kid is trying to determine the temperatures necessary to
freeze common plants and weeds.
This is not an easy experiment for several reasons: 1. Are you willing
to donate the use of your family's refrigerator for several weeks. I think the
answer is no. The alternative is to purchase a small "dorm" refrigerator for
$80-$150 from a discount store or maybe second hand. 2. There are a number
of variables that need to be decided. A. Type of plants. B. The
temperature(s), which must be set and kept constant for some period of time
(to be determined) -- or will the temperature just be a "cold snap" in the
freezer for an hour or so. C. The age of the plant -- young plants are more
likely to be sensitive than older ones. D. What is the criteria of
passing/failing? E. If the exposure time is more than a day or so, you may
need to water the test plants to distinguish freezing from dehydration.
Your son/daughter will need to think these things.
Each of the following includes a table with frost tolerance/sensitivity of
Also possibly of interest:
Anthony R. Brach, Ph.D.
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Update: June 2012