On Wed, 17 Mar 1999, Terry King wrote: > It works well when the temperatures are hot enough. Here in the frozen > north my experience with clear plastic left over the winter on the soil is > that in the spring it only gives the weeds and grasses a good head start! :-D > They are more frost tender though so once they are growing well taking > the plastic off very often allows frost to kill the early growth. I tried it down here... couldn't get the soil temps over 90 even in midsummer, given our cool soils and cool nights. Works fine in warmer climes. Kay Lancaster kay@fern.com just west of Portland, OR USDA zone 8 (polarfleece)