Onions like to hide their secrets. Beginners as well as expert gardeners plant them in hopes of having large onions upon harvest, only to be disappointed by small, what seems like, spring onions.
It's time to peel back the layers of this mysterious root crop.
It is very important to purchase your onion bulbs from a local garden shop for the reason that you need short season growing onions. Big box stores are selling for the whole United States, which means they purchase a few types of onions in bulk. They may be short growing season. They may be long growing season. You should, for fun, ask your large chain supplier, which onion they are selling. Do yourself, as well as local businesses a favor, and visit a local feed & seed or garden shop, and purchase the correct onion for your area.
So which onion do you need? In the south, especially South Carolina, we must grow short season onions, because of our shorter growing season, hence the name.
You can plant onions from seed, plants, or bulbs. I prefer to plant the bulbs. Bulbs have been in the ground for a whole year, so you are way a head of the game.
Most of your root crops can be planted all winter long. Onions planted in the fall have the potential to grow larger because they have all fall to grow, however you can plant them from late fall until the first of March. For fall planting, wait until the temperatures get in the low eighties.