On Sat, 28 Mar 2009 11:33:50 -0000, "Bob Hobden"
wrote:

snip


Alternatively, what sort of compost are you using? I had a lot of trouble
once with a peat free compost (New Horizons) and cured it by going back to a
peat based compost (Levingtons).


B&Q John Innes Seed Compost - this is the first year I have used it.