Borettana onion seeds are an heirloom variety originating around the town of Boretto in northern Italy. This is a small yellow storage onion with a unique flat top and squat, flattish, cipollini shape. Borettana will store for up to 5 months, and they braid well for attractive market displays. The flavour is strong and a little bit hot. The above ground tops are robust, and the skins are thick, allowing for good curing and drying for winter storage. Take time to cure these onions, and they should last in storage for months after harvest, remaining firm and flavourful.
Matures in 110 days. (Open-pollinated seeds)