Tropea Rossa Tonda Onion Seeds – Italian Heirloom Long-Day Variety for Sweet, Rose-Red Bulbs

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