In article , Frogleg
writes
On Mon, 5 Apr 2004 23:14:58 +0100, "Mark Allison" nomail@please
wrote:


Well, I was surprised it got that hot too. This was on a fairly sunny day
with the lid on the propagator and the vents open. When I put my hand over
the vent, I could feel the heat coming out. The greenhouse temp was around
25C at this time. When the sun goes in for a while the greenhouse temp is
around 12-18C during the day. Should I bring all my seed trays into the
house, or should I wait a few weeks and see what happens?

Let me see if I've got this right: you have a propagator inside a
greenhouse. The heat for the propagator is off, and the vents open.
The temperature in the greenhouse is 25C (sunny day), and the
temperature inside the propagator is 40C. Goodness, what a little
clear plastic will do! Having broiled a set of seedlings with a
similar arrangement (except I had the heat on below the propagator),
all I can advise is keeping a sharp eye/ear on the weather. If it's
going to be sunny and warm, give extra ventilation to the propagator.

Is the propagator in the shade or is it in direct sunshine for part of
the day? Id the sun gets on it, then erect a sunshade, as well as all
the other suggestions about extra ventilation.

I always try to sow only a few seeds at a time, so I can have a second
(and third and fourth) try if the first lot don't go.
--
Kay Easton

Edward's earthworm page:
http://www.scarboro.demon.co.uk/edward/index.htm