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Perennial vegetables are essential in every edible garden, as they take all the pressure off spring and fall planting and keep producing with less work on our part. These are my personal favorites.
Although “regular” onions don’t really work as perennials, a few of its cousins do. One of the most popular options is the multiplying onion, also known as the potato onion.
Shallots, those mild mini onions we all love for vinaigrettes and salads, are usually grown as annuals but can actually be maintained year after year in the right environment.
Also known as an Egyptian walking onion or tree onion, this variety is a hybrid between shallots and Welsh onions. The tender green stems are used like scallions all through spring and summer.
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