How to Grow Onions
Planning the Site
Onions grow best in loam soil or rich soft soil. The soil’s pH value should be 6 to 8. These are the best conditions for growing onions. Actually, onions will grow anywhere as long as they have proper drainage and the soil is kept moist. It is also good to have a site that is exposed to the sun.
Preparing the Site
The best time to put in some rotted manure on the soil is a month before planting. Plow the soil at least 8 inches deep to allow the development of the bulb. Remove any weeds around the area because they can easily take over the young bulbs. Plant the bulbs at least 2 inches apart, depending upon the expected size of the bulb when it matures.
Required Materials
Basic gardening tools and materials are needed for growing onions. You have three choices on how to start. You can choose to start with onion seeds, onion seedlings or sets. Seeds take a lot of time to grow and should initially be grown indoors. Seedlings and sets though give you a head start. However, it is up to you as to what you prefer.
Watering Requirements
Onions do not need frequent watering. It is important though, to know if the soil is dry enough, as this is the time you should water them. Don’t drown them with water – just give them enough water to keep them moist.
Nutrients Required
Unlike other plants, it is best to avoid using fertilizers that are rich in nitrogen because they result in smaller bulbs and lush tops.
Seasons
Onions are grown all year round. There is no specific time of the year when onions are ‘in season’.
Expectations / Results
In 5 months time, if you had started out with sets, your harvest should be ready. One indicator is when their tops fall off and are yellowed. A week after this, you are ready for harvest.