Tropea Rossa Tonda Onion Seeds – Italian Heirloom Long-Day Variety for Sweet, Rose-Red Bulbs
Heirloom - Non-GMO - Reliable Germination
Tropea Rossa Tonda Onion Seeds – Italian Heirloom Long-Day Variety for Sweet, Rose-Red Bulbs - 1 Packet is backordered and will ship as soon as it is back in stock.
Grow one of Italy’s most celebrated onions with Tropea Rossa Tonda Onion Seeds from Survival Garden Seeds. Adapted for North American gardens, this distinctive heirloom forms deep red, globe-shaped bulbs with a sweet, mild flavor and high sugar content. Thriving in full sun and well-drained soil, Tropea Rossa Tonda performs reliably in USDA zones 3–9 and is best planted in early spring for summer harvest.
Famous Italian Long-Day Onion:
Originating from the Calabria region—where it is honored with an annual festival, the Sagra della Cipolla di Tropea—Tropea Rossa Tonda is a long-day variety requiring 14–16 hours of summer sunlight to achieve full-size bulbs. Its early-maturing habit makes it particularly well suited for cooler northern zones where long-day conditions naturally occur.
Sweet, Flavorful, and Beautifully Colored:
This heirloom produces a generous harvest of round onions that begin as crisp white bulbs when picked young, then mature into attractive rose-red globes. Their naturally high sugar content gives them an exceptionally sweet, mild flavor. Tropea Rossa Tonda shines in salads, roasted dishes, grilled preparations, and caramelized recipes where its sweetness truly stands out.
Why Customers Love Tropea Rossa Tonda Onion:
- Distinctive Italian heirloom adapted for North American gardens
- Produces sweet, mild, rose-red bulbs with high sugar content
- Early maturing long-day onion ideal for cooler regions
- Versatile flavor for fresh eating and cooked dishes
- Consistent yields in full sun and well-drained soil
How to Grow:
Start seeds indoors 8–10 weeks before the last frost date, ensuring steady moisture and bright light for strong seedling growth. Transplant outdoors once the soil can be worked. Tropea Rossa Tonda requires long days—14–16 hours of summer light—to form full bulbs, making northern climates ideal. Plant in loose, well-drained soil with full sun, water consistently, and keep beds weed-free. Harvest young for mild white bulbs or allow them to mature into their signature rose-red color.
Net Wt. 500 MG
Tropea Rossa Tonda Onion Seeds – Italian Heirloom Long-Day Variety ...
Heirloom Vegetable Seeds
All of our seeds are open-pollinated, non-GMO, heirloom varieties with tested germination rates
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Why Choose Survival Garden Seeds
At Survival Garden Seeds, we believe in preparing today for tomorrow’s peace of mind. That’s why we offer only heirloom, non-GMO, and untreated seeds you can trust to nourish your family and support a sustainable lifestyle. As a family-owned American company, we’re committed to providing seeds that grow strong and true—helping you cultivate health, resilience, and beauty in your garden.
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Frequently Asked Questions
Are your seeds heirloom and open-pollinated?
Are your seeds heirloom and open-pollinated?
Yes. All of our seeds are heirloom, open-pollinated varieties, which means they can produce seeds that grow true to type and are suitable for seed saving.
You can learn more about open-pollinated, heirloom, and non-GMO seeds in our Survival Garden Training blog.
Are your seeds non-GMO?
Are your seeds non-GMO?
Yes. All Survival Garden Seeds are 100% non-GMO. Our seeds are open-pollinated heirloom varieties and are never genetically modified.
Are your seeds treated with chemicals?
Are your seeds treated with chemicals?
No. Our seeds are completely untreated and free from chemical coatings, fungicides, or synthetic treatments.
How do I know my seeds are fresh?
How do I know my seeds are fresh?
Every seed packet includes a packed-for date, and we germination-test each seed lot before packaging to ensure high viability.
What is the shelf life of your seeds?
What is the shelf life of your seeds?
Most seeds remain viable for 3 to 5 years or longer when stored properly in a cool, dry place away from light and moisture.
In what USDA hardiness zones can I grow your seeds?
In what USDA hardiness zones can I grow your seeds?
Our varieties are selected to grow successfully across USDA Hardiness Zones 3 through 10. Each packet includes variety-specific planting guidance and germination tips.
