"Rhiannon Macfie Miller" wrote ...
I'm thinking of trying sweetcorn next year. I'm in Perthshire, so I
know this might be a bit of a risk. I also have quite clayish soil,
which I gather sweetcorn doesn't like (though I plan to germinate them
in the greenhouse in any event, so maybe that doesn't matter so much).

The only varieties I can find that say they have good cold tolerance are
all Supersweets, and I had thought that Supersweets were more sensitive
in general than traditional varieties. Am I wrong about this? Would I
be better off going for a quick-maturing Supersweet or one of the older
varieties?

The "supersweet" varieties are all short and quick growing plants so are the
ones to go for, heavy clay soil never caused us any problems on our old
allotment with sweetcorn but we also start them off about the beginning of
May in our heated greenhouse (min 55°F) in a multipurpose compost and heated
propagator to start with.
Suck it and see is always our motto. :-)

--
Regards
Bob H
17mls W. of London.UK