I'm bit by bit starting to learn about vegetable gardening. This year's newbie is onions. I planted seeds in a plastic covered germinating thingy that sits on the windowsill. They've germinate
. (I'm always pretty amazed and disbelieving when something actually comes up). What do I do now? At the moment they just look like long strings of green cotton. Very fragile looking. Do I take the plastic top off or do I leave it on? I don't think they're anywhere near ready to go in the ground.