The Onion ‘Toughball’ F1 is the premier winter variety of Japanese onions from seed. It’s a high-output, medium-early type that yields high-quality, round bulbs. Toughball is highly resistant to Botrytis and Downy Mildew, crucial traits for onions grown over the winter. It’s recommended for its superior growth rate and suitability for the Exhibition market, producing consistently round, medium to large bulbs with robust skins. The bulbs are firm, yield well, and are resistant to bolting. This onion is an excellent choice for early harvest in July/August. The Onion Toughball F1 has been a champion in the UK National Vegetable Society Championships numerous times, proving its superiority when cultivated properly. It matures several weeks ahead of other varieties, providing a head start that enhances their quality, a factor that contributes to their success in competitions.
