Onions or sometimes called the common onions, are bulbs that are formed from the base of the onion leaves. They come in a variety of colours and shapes, the most common you see is the round to oval shaped and generally smaller than a cricket ball, but can be as small as a golf ball. You can also get a variety of other shapes, as well as a variety of colours including whites, browns, yellows and reds, and some that you can pickle.
Onions are grown around the world and are used in a variety of dishes, they can be eaten raw or cooked and they can sting your eyes when you are cutting them up.
For the best results onions like sunny, well drained, well fertilized soil, with a good mix of manures, rock minerals such as your Veggie Mate and compost. If you are growing them from a punnet, plant them 5 to 10 cm apart and about 30cm between rows. When growing onions from seed, plant then into the soil about 10mm deep and in their final position.
Onions can get a bit of downy mildew on the leaves so be watchful and spray with Mancozeb if it gets to be a problem.
Planting in early Winter and harvesting in early Summer is about right for most varieties, as it takes about 26 weeks for them to mature. If not harvested it can produce a flowering stalk and seeds that you can save and use next year.