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[Allium cepa] Medium-early Calabrian red onion seeds, spinning-top bulb, glossy red-violet skin, sweet flavour — great for jams and salads.
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Also known as "top-shaped" for its spinning-top form, the Tropea round red onion is the intermediate ecotype of the Tropea family, between the early flat type and the late elongated one.
Allium cepa Tropea top-shaped belongs to the Amaryllidaceae family. The bulb takes on a distinctive spinning-top shape, slightly tapered at the base, with glossy red-violet skins and streaked white flesh.
Seedbed sowing typically happens in late summer; field transplanting takes place between November and December, arranging seedlings in tidy rows.
Like all Tropea ecotypes, it grows best in Calabrian coastal soils rich in specific minerals; it needs constant care but without excessive chemical fertilising.
This medium-early ecotype is harvested from mid-May to mid-June, at a point between the flat-round and elongated types.
Like other onions, it is prone to downy mildew and neck rot in excessively humid conditions; watch also for onion fly and thrips.
Thanks to its handy shape and sweet flavour, it is widely used for jams and mustard-style condiments paired with cheeses and meats, as well as fresh in salads.
Like all Tropea red onions, it is rich in anthocyanins and organic sulphur compounds, with recognised antioxidant and digestive properties.
Per 100 grams, Tropea round red onion provides about 32 kcal, 1 g protein, 7.3 g carbohydrates (of which sugars about 4.7 g), 0.1 g fat and 1.3 g fibre. It has a good vitamin C content (about 7 mg) and potassium (about 140 mg).