Give them a sunny spot
Choose a sunny, sheltered spot with moist (but not waterlogged!) soil.
Grow in beds or pots
Onions and shallots can be grown quite close together making them a good crop for pots and containers as well as for raised beds, planters and traditional veg patches. If growing in pots and containers, it is best to choose a flat base pot rather than one that tapers off.
How far apart?
10cm apart is enough, and spring onions can be squeezed in a little closer still.
Don't let them get too soggy
Waterlogged soil is not good for onions and shallots and can cause the bulbs to start rotting.