Growing Onions Indoors In Pots

Growing onions indoors in pots

All year long, you can plant bunching onions on a windowsill, too!

Do onions grow well in containers?

For growing onions in pots, select a container based on the type of onion. For onions you plan to harvest as scallions or spring green onions, an 8-inch (or larger) pot works fine. To raise bulb onions, you'll need a container wide enough so that each onion has about 3 inches of space around it.

Can you grow onions in a 5 gallon bucket?

A 5-‐gallon bucket works fine for growing 6 or 8 onions. A large planter box works great, or even a plastic tub. Be sure your container has good drainage holes and try to elevate it a little bit off the ground.

What is the best way to grow onions in containers?

Onions can be grown in containers or in the ground, but you'll need a good-sized pot that's at least 10 inches deep to accommodate the roots. The pot should be about eight inches in diameter. If you're planting multiple onions in one pot, choose a pot that's three inches across for each onion you'd like to grow.