The rule of thumb for harvesting onions is to dig them when the tops have fallen over. However as long as the tops are green, the bulbs will continue to plump up. So when is the ideal time to harvest them. That partly depends on the weather, as do so many things in the garden.
If you’re having a rainy season, onions can re-sprout, even after most of the tops have started turning brown. That may sound like a good thing, but re-sprouting will shorten their storage life.
Of course, that doesn’t really matter if your growing a variety that doesn’t store well to begin with, like a Sweet Spanish. But if you’re growing a lot of onions to keep throughout the winter, don’t wait for the tops to brown. Get them out of the ground when the leaves have fallen over.
H3 – Hot, Hazy, and Humid