I was in Lowes yesterday looking, and they are getting everything out and ready for Spring. Of course I had to go though all the seeds, but I restrained myself; I have enough seeds on hand for the next couple of seasons, not to mention the thousands I have in the freezer vacuumed sealed in Mylar bags in case of a disaster...but, that's another story. Anyway, I was looking at the soilless seed mixes, and the prices get more expensive every year.
I have decided to make my own this year and save money. From a PennState Extension article (I posted it in the Resources Area), I'm going to use the following formula:
2 gallons peat moss
2 gallons vermiculite
4 Tbsp. Dolomitic limestone to raise the pH and to supply magnesium and calcium (Jobe’s Organics Garden Lime)
2 tsp. of a slow release organic fertilizer (Jobe’s Organics Fast Start Granular Fertilizer with Biozome)