Sow True Seed Borettana Cipollini Onion Starts

Onions are sensitive to day length, which triggers bulb formation. This variety is best suited for regions where summer days provide the necessary light duration to encourage the onions to stop growing leaves and start forming their signature flattened bulbs.

Borettana Cipollini onions thrive in loose, well-drained soil. Ensure your garden bed is free of rocks and debris, and consider amending the soil with organic compost to provide the moderate moisture retention these plants prefer.

While they are edible raw, these onions are prized for their culinary performance. Their high sugar content makes them ideal for caramelizing, roasting, or braising, where they develop a distinct, mellow sweetness.

These onions have a compact growth habit, but they still need room to develop their bulbs. Space them about 3 to 4 inches apart in rows, which will require approximately 12 to 15 square feet of garden space for the entire bundle.

Yes, they perform best in a location that receives full sun, which is defined as at least six to eight hours of direct sunlight daily. Adequate light is essential for the plants to reach their full size and develop their characteristic rosy-bronze color.