RHS Matrix Spring Onion is a great choice for beginner gardeners. It’s winter hardy and resistant to diseases ensuring it stays fresh for longer, and slow to bulb, meaning you can keep harvesting them over an extended period. The mild flavour makes them delicious in salads, soups, stir-fries, and any other recipe that calls for onions. These onion seeds grow well in many types of soil, so you don’t need to worry about getting the conditions just right, and it has even earned the RHS Award of Garden Merit - so you can trust that it’s a reliable and easy-to-grow choice. Looking for more easy-to-grow vegetables? Browse Mr Fothergill’s complete collection of vegetable seeds or check out our seed starting kits to help you get started.

How to Sow Seeds

Growing notes: Sow RHS Matrix Spring Onion seeds 6mm (1/4in) deep in rows 15cm (6in) apart. Cover with a fine layer of soil and firm gently. Keep the soil moist to encourage germination, which should take around 10-14 days. Once the seedlings emerge, they should not require thinning. Keep the plants well-watered, especially during dry periods. Harvest your RHS Matrix Spring Onion seeds when the bulbs are large enough to use - usually around 12-16 weeks after sowing, or when they reach the desired size for your recipes. Make successive sowings every 4-6 weeks for a continuous harvest.

Growing Needs

Water requirement: Moderate
Germination: 10-14 days

Plant Characteristics

Easy to grow: Yes