This year I used oversized sandwich bags, 7 inches by 8 inches. I nip off the bottom corners for drainage as well as make three small cuts evenly spaced along the bottom. I add some of this to each baggie and add a pinch of osmocote type slow release fertilizer and mix it in. Then add more mix on top so the whole is about half the height of the baggie. Firm the soil well, then plant up to 12 seeds per bag. They tend to thin themselves out by attrition, which is good. Survival of the best, fittest.
I can fit four to five of these in a plastic shoebox. I have nine of these boxes in progress now under lights, as you can see. I do it this way because I otherwise don't have room to start this many in individual pots. And they are very easy to handle. Come fall, I can cut away the baggie and place the "plug" into a larger container, probably one gallon, without disturbing the roots much. If the bulblets are big enough, they might go out to a seedling bed if I can find the room. I think Tracey's may be big enough.
