Onions are one of the most used vegetables in the whole world. Onions are mostly used to make delicious dishes. You cannot make a delicious dish without onions. Onions are filled with vitamin C and fiber, which are very good for our immune system. Onions also help to fight against the risk of cancer. What is the best time to plant onions? If you ask me, I would say early to mid-spring is the best time to plant onions because onions require full sun to grow properly. Now let’s talk about the best time to harvest onions. For your information, onions take about 90 to 100 days to become mature. That means you cannot harvest onions before 80 days. After 80 days, about three months later, you can harvest your onions. If you ask me when I harvest my onions, I always wait 90 to 95 days. After 90 days, I start to harvest onions, and I always yield healthy and good onions. That means you will have your onions in late summer. If you wish to grow bulb onions, they will take 100 to 125 days to complete maturity. After 100 to 125 days, you can harvest bulb onions.