mouldy geraniums

[learntojive]

This year instead of buying my geraniums as plug plants I bought some seedlings from the garden centre.
They took me ages to prick out, I put them into little plug plant trays and they seemed to be doing really well in the greenhouse.
I've just noticed though that a couple of them have flopped over and where it joins the soil looks mouldy.
What have I done wrong, and will the others all do the same? I've got some lobelia and begonias too but they look ok so far.
Thanks

[Hawkwalk]

sounds like damping off. This can be caused by over-watering. You can buy a chemical to help prevent this but the best way is to allow good air circulation and do not over-water the compost.

[Hawkwalk]

http://www.rhs.org.uk/advice/profiles1000/damp ing_off.asp

some good advice here.

[learntojive]

That's very helpul - looks exactly what's happened, thanks a lot