Rossa Lunga di Tropea Red Summer Onion


Rossa Lunga di Tropea Red Summer Onion

(110 days) Open-pollinated. The famous Italian heirloom torpedo onion whose name means ‘Long Red of Tropea.’ In Calabria near the southern tip of Italy, Tropea is the site of a famous onion festival every August. Elongated like torpedos, these thin-skinned glossy maroon bulbs with lighter interiors are easily sliced into even rings. Sweet, mild and delicious for fall enjoyment. Plants died back in the first week of October for Donna Dyrek, will finish earlier if started indoors March 1. Excellent bunched fresh for farmers market in midsummer. Chefs love them for grilling or braising. Last year’s seed produced an unsatisfactory shape, but our new lot is back to usual torpedo form. Intermediate to long day for middle latitudes: 35–48°.

2485 Rossa Lunga di Tropea
Item Discounted
A: 1/16oz for $2.40  
B: 1/8oz for $3.80  
C: 1/2oz for $7.00  
supply limited, size not available
D: 1oz for $11.00  
supply limited, size not available
E: 4oz for $30.00  
supply limited, size not available
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Additional Information


Allium cepa

Days to maturity are from date of transplanting.

Culture: Start indoors in Feb. or March and transplant out in spring almost as soon as the ground can be worked. Set 4–6" apart in trenches in well-dug beds with generous quantities of organic matter. Avoid transplanting next to grass strips; slugs love to dine on tiny allium seedlings. Irrigate seedlings whenever the topsoil dries out.

Onions are day-length sensitive. Long-day types are for northern latitudes. The earlier they are set out, the more chance they have to make top growth while the days are lengthening. The more top growth, the greater the bulb size. After summer solstice they begin bulbing.

After half the onion tops fall, push over the remainder and harvest within a week. Field-cure in the sun about 10 days until dry, covering with a tarp in wet weather. Curing is essential for long storage. Hang sacks in a cool dry well-ventilated place, periodically removing sprouting or rotting bulbs. Onions survive light frosts. When it begins to warm up in spring, put your remaining storage onions in your refrigerator crisper. Most will keep without sprouting until your new crop is ready.

Minimum germination temperature 50°, optimum range 60-70°. We discourage the use of bottom heat because onions germinate poorly in temperatures above 70°.

We do not hold over hybrid onion seed because of precipitous decreases in germination. Onion seed is short-lived. Retest 1-year-old seed before using. Discard anything older.

Click for Onion sets and plants.


Diseases: PB: Purple Blotch, PR: Pink Root