A friend has just given me half of her onion sets so that's 35 onion's. I don't know what to do with them as never grown onions before. Do you treat them like a seed and put them into small pots or do they have to go into the ground as they are. Our garden is on clay and water logged, drainage is very bad although I have been pilling lots of the good stuff on it and then covered it with cardboard which is now breaking down. I grew leeks last year and they got going well but once I planted them out they rotted in the wet ground. Also how long from planting till I can use them in the kitchen.