Onions are grown in almost every home garden. For many, the bulbs seem to stay small and not grow. If you want big onion bulbs like you buy at the grocery store, these 5 steps will help you succeed.
Choose an area that receives 14 to 16 hours of sunlight to grow your onions. Onions need full sun exposure to grow big.
Prepare the garden area with a garden fork or tiller. Dig down to a depth of 12 inches. Incorporate 3 to 4 inches of compost into the soil. The compost adds nutrients, helps keep the soil light and improves drainage.
Dump the onion bulbs out onto a table and separate them into two piles. In one pile, put the onions that are smaller than a dime. Put the bigger onions into the second pile.
Plant the onions with the pointy end sticking out of the ground and the flat root end going into the ground. The onions should be no deeper than a half inch. Leave 4 inches of space between each onion bulb and space each row 12 inches.
Water the onion frequently through the growing season. Onions need a lot of water to grow big and they should receive at least an inch of water per week.
Onions need to be fed twice throughout the growing season. Choose an all purpose vegetable fertilizer. The first feeding should come when the onions reach 6 inches in height. The second shot of fertilizer comes when the bulbs are beginning to grow.
select one here...