When growing veg in pots, what's the best soil to use?
After the installation of my greenhouse last month I'm going to have my first proper season of growing veg! I have a small veg patch outside but have also bought some of the Haxnicks Vigoroot planters to grow some things inside the greenhouse (peppers, chillis, cucumber etc). I wondered what's the best soil to use - compost? Top soil? Mushroom compost? A mixture? I live near a decent supplier of all so have the choice, but I'm never really sure what the best thing to use is!