Lynn,
I always planted my seed in MA that way but we didn't have the weed pressures that we have here. Moss and winter weeds are deadly to new semp seedlings. That's why I always use sterile planting mix and plant in seedling beds that have new soil in them, and with potting soil on the top 1/2". That way the seedlings will grow at least to a sizer that they can fend for themselves a little better, The potting soil in the pots tends to crust over a little bit and you can usual lift pieces of the crust when transplanting into the seedling beds. That disturbs the roots less than transferring naked seedlings.
Anyway, my two cents!
Hmm, maybe yo need to do a Cafe' series if these work out! Maybe 'Cafe' du Monde' or something silly like "Starbucks".
Kevin
