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Re: Soil temp

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dee-tee is almost right.  You must buy a particular kind of black plastic
sheet; one that transmits heat to the soil and captures the heat from the
sun.  Some of the black sheets will reflect heat.  Because so many gardeners
and farmers are working to extend the season in both directions, it is
easier now than ever before to find the proper black sheets to warm your
soil.  Remember to water appropriately since the sheets are not water
permeable.

Annie, regarding your question:
>>The territorial seed catalog gives you the "Optimun soil temperature range
for germination" and I don't know if they mean >>for indoor or outdoor
germination.

The soil temperature requirement for germination is the same whether you sow
the seeds indoors or outdoors.  Once the seeds germinate, they will have
different needs for high and low temperatures.  Indoors, you have better
control over temperatures.  For example, you can set the correct temperature
for germination and then maintain the new temperature the seedlings need to
mature.  Outdoors, the temperature varies from heat-of-the-day to
cold-of-the-night.  The seeds will only germinate if the soil maintains a
the germination temperature.  Once it becomes a seedling, you need to make
sure the temperatures will be appropriate for the plant to mature.

I've gone on a bit, I hope this isn't confusing.

GardenMuse
--- Original Message -----
From: dee_tee <dee_tee@email.msn.com>
To: Square Foot Gardening List <sqft@listbot.com>
Sent: Friday, February 02, 2001 12:43 PM
Subject: Re: Soil temp


> Square Foot Gardening List - http://myweb.flinet.com/~gallus/sqft.html
> Annie, and All
>
> Once again, black plastic heats itself, clear (or not opaque) sheeting
heats
> whatever the rays fall on (THE GROUND.)
>
> The only benefit of covering the ground with black sheeting is that weeds
et
> al won't sprout.
>
>[snip]
> REMEMBER: BLACK SHEETING HEATS ITSELF, CLEAR SHEETING HEATS WHAT'S UNDER
IT.
> DT (aka Dore Tyler)  dee_tee@msn.com
> Doing his own thing in the privacy of his own garden.
> USDA Zone 8b, Tacoma, WA
> ----- Original Message -----
> From: "Annie Sargent" <annie@esargent.org>
> To: "Square Foot Gardening List" <sqft@listbot.com>
> Sent: Friday, February 02, 2001 8:38 AM
> Subject: Soil temp
>
>
> > Square Foot Gardening List - http://myweb.flinet.com/~gallus/sqft.html
> > Hello everyone,
> >
> > The territorial seed catalog gives you the "Optimun soil temperature
range
> > for germination" and I don't know if they mean for indoor or outdoor
> > germination. I want to try to warm up the soil early (outside) by laying
> > black plastic in strategic areas that get more sun and heat than the
> others.
> > Then when the temperature is 40 degrees I could plant lettuce and
> > spinach/chard/peas at 50 degrees. Do you think that might work? I'm very
> new
> > at this, so any advice would be welcome!
> >
> > Thanks!
> > Annie in sunny Utah
> > annie@esargent.org
> >
> >
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>
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