Long-day onions grow the best in northern states, while short-day onions grow the best in southern states. [1] X Research source Yellow onions are golden in color and have a slightly sweet flavor, white onions are sharp and a bit tangier than their yellow counterparts, and red onions are violet in color and are often eaten fresh rather than cooked.
You can choose to grow onions from transplants/cuttings, but this isn’t always successful and is much more difficult to accomplish than just using sets or seeds. Visit a local nursery to get recommendations on sets and seeds that grow well in your area.
Onions grow well in raised beds, so if you’re unable to find adequate garden space, you can build a separate raised bed for your onion crop.
Testing and altering the pH of your soil is best done at least a month prior to planting, so that any additives have time to take effect on the soil and prepare the foundation for the onions to grow.
Transplanted onions require more water than sets or seeds, so give yours a little extra moisture if that’s what you planted.
If you want your onions to taste a bit sweeter, give them more water than you normally would. If any of your onions flower, pull them out. These onions have ‘bolted’ and won’t continue to grow in size or flavor.
Store onions in stockings or over a wire screen to allow good airflow when drying. This will help them to keep for longer and maintain their flavor. Sweet onions will go bad earliest because of their high moisture content, so eat them first in order to prevent rot from making an appearance. [5] X Research source Discard, or cut up and use, any onions that show signs of decay so they don’t spread disease to other onions in storage.
