How To Grow Onions
Working out how to grow onions shouldn't be difficult. They are a fairly hardy vegetable that can withstand quite a high level of neglect and will grow in most gardens.
You'll need either a starter set or onion seeds to begin with and both of these options will give you full sized tasty onions in 3 or 4 months.
The first step in learning how to grow onions is having your garden or vegetable patch set up to give them the best chance of survival. You'll need a patch of soil that gets as much sun as possible throughout the day. You should turn your soil over well, and start adding fresh compost to it the fall before you plant for a really healthy soil. If you know that you have an acidic garden with a pH level below 6, try to add lime to neutralize the soil.
Lastly, make sure that you weed thoroughly, as onions aren't great at fighting off invaders.
Part of knowing how to grow onions is being able to plant them correctly. The first rule is to water the soil first, as onions don't like being dry for too long.
If you decide to plant onion sets, make sure that you put them the right way up in the soil. You need to make a shallow hole such that when you put the onion in, the soil will just cover the tip of the bulb.
If you're planting onion seeds, you'll need to start them off inside somewhere warm, where germination will take place between 5 and 10 days. When they're ready, plant them a few inches apart at a depth of an inch.
As with most vegetables, timing is everything when you are learning how to how to grow onions. You need to start getting the soil ready the September or October the year before you want to eat to give the ground enough time to settle.
If you are growing onions from seeds, you want them out in your garden as soon after the last ground frost as possible, usually around late February. Onion sets have already been started for you, so these can go straight in the ground in March or April.
Onions take about 3 or 4 months to grow, so you should be thinking about harvesting them in August or September. You know they're ready when the leaves turn yellow and start to fall over.
Learning how to grow onions isn't difficult, and after a year or two of practice you should be able to have them as a successful routine part of your vegetable garden. If you do decide to repeat the process, make sure you change either the soil or their location after 3 years to give the soil a chance to recover.