Posted: 17/05/2013 at 12:57
Red Dahlia, The weight of the compost should have told you it was way too wet for the plants, I would have spread it on plastic to dry off a bit before use.
Also it pays to buy a small bag of grit and one of washed sand then make up a potting mix half compost half grit and sand, that will allow drainage.
Most of the compost appears to come from the same process now, it is full of bits looks and smells disgusting, for potting on seedlings I riddle the compost before making up a potting mix and up to now it has worked, bring back Peat and to h@#@ with the greens, Germany even burns the stuff to generate electricity so us gardeners are getting done as usual.
Rescue your plants by using fresh compost damp not wet and mix as above, the mold will be because it has been too cold, some heat is needed in the greenhouse for young plants, mine is south facing and against a brick wall so not so much extra heat needed.
You will be gutted although us gardeners learn from our own mistakes and all is not totally lost some will be OK if you re pot, depends on where you are of course, down south they could go out in the next couple of weeks, up here we need wait awhile.