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Name: John S.
Status: other
Age: 30s
Location: N/A
Country: N/A
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.

Vince Calder

Each of the following includes a table with frost tolerance/sensitivity of different plants:

Also possibly of interest:

Anthony R. Brach, Ph.D.

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