Crikey, I think the perlite you're using in that pot is very big and ugly, Angela -a seedling will never manage to push through that.....
As you know, we haven't got any grass to scorch - but David A. was here to get a few plants out of the front garden for us yesterday and you should see how dry it is where the bushes came out.
Powder dry - terrible - I wonder how they're growing at all in such conditions.