Actually the abundant rains help to increase germination more than the sun does... How would Milorganite,,, or anything else for that matter,,, speed germination???
I would look to the SEEDBED if I suspectted things are not going according to schedule... What is your seedbed composed of? and how was it prepared?,,, are the 2 critical questions that we must ask ourselves, if we are to ever advance our success rate...
Seed buried in the top 1/4" of loose, airy topsoil is the ideal seedbed... how far is your prep work off that standard???
Now that I know that clay's texture(platelets) has nothing to do with water infiltration, percolation, or drainage,,, I wonder what does...