I've just got myself the Crops in Pots book from RHS and am eager to get going; I don't think this time of year is right though, is it?
I also have 6 or so onion shoots in a glass of water on my window sill - I found 2 onions in my fridge that'd sprouted, so I've separated the plants and am ready to put them in some dirt!
Any tips for getting them to be big, fat onions?