September Seed Sowing

September marks the transition from summer to autumn, making it an ideal month to sow crops for autumn, winter and even early spring harvests. With cooler days and steady soil warmth, many hardy vegetables and herbs can establish strong roots before the colder months. Ideal seeds to sow in September in the UK include spinach, rocket, lettuce, radishes, spring onions, turnips, winter salads and hardy leaf brassicas such as kale and mizuna. You can also sow broad beans for an early spring harvest if protected in a cold frame or polytunnel. Herbs such as parsley, coriander and chervil do well sown now, while quick-growing flowers like calendula and cornflowers can extend your garden colour into autumn. Ensure young seedlings are well-watered and consider cloches or fleece to protect them from early frosts. With Seed Envy’s high-quality seeds, September sowing maximises your growing season and keeps your garden productive as the weather turns.