Growing onions in containers or pots at home is an excellent ... Keep your onions (including red, yellow, and white varieties ...

As long as you get the basics down, growing them in containers outdoors can be simple yet rewarding. Green onions have small root systems, so a container that's about 6 to 8 inches deep is ideal.

Avoid by always purchasing sets from a reputable source and not growing onions on the same site more than two years running. Onions with red or yellow bulbs are less affected than white ones.