Follow these steps for a healthier harvest. Onions are ready for harvest about two-and-a-half to four months after planting. You'll know they're ready when their leaves start to flop over. After you ...

A row of onions planted in a garden while a woman rakes them. - Natali Ximich/Shutterstock For many gardeners, the anticipation of harvesting onions is almost as satisfying as actually getting to eat ...