Start your vegetable patch with Thompson and Morgan Hi Keeper Onion F1 Hybrid Seeds and enjoy golden yellow globe-shaped bulbs that can weigh up to 120g, perfect for storing over the seasons. You'll find their excellent winter hardiness makes them ideal for overwintering when sown indoors in autumn, while spring sowing works just as well. Growing these onions alongside mint helps confuse and deter onion fly, so you can look forward to a healthy crop whether you're a seasoned allotment keeper or a home gardener. Each packet contains around 80 hardy annual seeds, suitable for full sun positions and reaching up to 45cm in height with a spread of up to 10cm. Direct sow onions outdoors in spring on any firm, well-drained soil in full sun. Sow thinly at a depth of one centimetre and a distance of 30cm between rows. Prepare the planting area several weeks in advance by incorporating some well-rotted garden compost to improve drainage and soil fertility. Avoid planting onions on freshly manured soil. On particularly wet ground, try growing onions in raised beds. When large enough to handle, thin onion seedlings to 10cm apart for medium-sized bulbs, or at a slightly wider spacing if larger bulbs are required. Product Specifications: Hardy Annual. Position: Full Sun. Height: up to 45cm. Spread: up to 10cm. Images shown are for guidance only of the expected results from plants upon maturity. Different growing conditions might vary the results. Images may be included to illustrate supply, but can vary due to seasonal changes (e.g., deciduous plants lose leaves in colder months).