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Red Long of Tropea Onion (Heirloom, 90 Days)


Italian Heirloom. This fabulous onion’s origin is a small area of southern Italy, near the city of Tropea. It produces 3-4” elongated bulbs wine red in color and have a sweet white flesh.

150 seeds  

Please note that germination rates for alliums (onions/shallots/chives/leeks) decline rapidly. We strongly encourage you to purchase new seed each growing season.


Allium cepa

Germination: 5-10 days

Germination Temperature: Optimum soil temperatures 60-75ºF. 

Seed Sowing Depth: 1/4" deep

Sowing Indoors: Start 8-10 weeks before last frost with soil temperatures 60-75ºF. Sow in flats 1/4” deep, 1/4” apart. Transplant seedlings out mid/late spring, 2-6” apart. Liquid fertilize seedlings every 7-10 days. Seedlings size should be about a pencil thick at transplanting time.

Sowing OutdoorsEarly to mid-spring when soil temperature reaches at least 55 ºF. Sow 1-3 seeds per inch, thin to 2-6” apart. The larger the bulb size the more space. 

How much does a packet plant: 15-30 foot single row  

Harvest- Stop watering a week before harvesting. Pull out when necks soften and start to fall over. Cure them in the sun for a few days then finish drying them out of direct sunlight, in a warm area, and in single layer so air can circulate around them until the neck is dry. Store in a cool dark place with 35-40ºF temperatures and 65-70% humidity.

Tips- Needs fertile, well drained soil. Amend with compost or apply organic granular fertilizer. Adequate water is very important for optimum growth, 1" per week. 

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Alan S.
United States United States
I recommend this product

This red onion tastes like a shallot

I have been searching for a bulbing onion that will grow in my part of California for years. I live on the central coast in between San Francisco and L.A. The summers are hot/dry and the winters are cold/wet. The stores tend to carry long day onions so they don't get very large over here. Short days are difficult to find, so I've grown my own. They rarely do well. A friend gave me a pack of red torpedo's and I grew them as a green onion. I didn't get to them in time and they bulbed out. I was impressed. I ran out after a couple of years and couldn't find them anywhere, so I tried the Red Long of Tropea. It turned out to be the same onion. It is the only bulbing onion I have consistent success with. It also has a flavor different than any onion I have every tasted. It almost tastes like a shallot. Also, it will bulb at different times of the summer. My first batch was ready by July and I had a second batch in September.

Ashley C.

Fantastic Fresh Onion

I grew onions for the first time this year and had great success with this variety. They are the perfect size to be used fresh in salads and pasta salad. Next year I will succession plant them so that I have onions all through the summer. As another reviewer already mentioned, these onions do not store well.

Crescent City, CA

Delicious onion

Absolutely wonderful onion. Great for adding to cooking, or sautéed with a bit of olive oil. This onion is not a keeper, but no worries. I start small batches every couple of weeks, and transplant. Very good flavor, and I definitely purchase it every year