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Have you ever found a pepper inside a pepper?

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That little pepper inside a bigger pepper is called an “internal proliferation.” Its form can vary from irregular and contorted to a near-perfect but sterile fruit.

A pepper growing inside a pepper is a type of parthenocarpy, which is the formation of fruits without fertilization or the formation of seeds. No one is sure what causes them, but temperature and nutrient levels have been ruled out.

Plant breeders, who consider this anomaly undesirable, keep an eye out for it when selecting for new cultivars, because the trait is inheritable.

So I received no definitive answers about why there are peppers in peppers, but had one definitive discovery: Busy scientists are willing to pause while fine mapping the tomato beta-modifier gene, as Dr. Stommel did, and answer oddball questions from the public.

For the record, an internal proliferation is as edible as its Capsicum container. I think of it as getting a second pepper for free.

Karan Davis Cutler is one of nine garden writers who blog regularly at Diggin’ It. She's a former magazine editor and newspaper columnist and the author of scores of garden articles and more than a dozen books, including “Burpee - The Complete Flower Gardener” and “Herb Gardening for Dummies.” She now struggles to garden in the unyieldingly dense clay of Addison County, Vt., on the shore of Lake Champlain, where she is working on a book about gardening to attract birds and other wildlife.To read more by Karan, click here.

EDITOR'S NOTE: This article has been translated into Estonian. Click here to read it.

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