Soil — How to Grow
Sow direct where they are to grow in shallow drills, thinly, in rows 10cm apart. Thin to 2–3cm apart and use the thinnings in salads. Water in dry spells — they run to seed if stressed. Successional sowings every 3 weeks from March through August give a continuous harvest. Can also be grown in containers and windowsill trays for year-round supply.
Space plants 5cm apart
Watch Out For
Companion Planting
Keep apart from
Regional Growing Guides
Uk
Sow
Mar, Apr, May, Jun, Jul, Aug
Harvest
May, Jun, Jul, Aug, Sep
Smoke — In the Kitchen
Spring onions are a versatile vegetable with a mild, fresh flavour that sits somewhere between a sharp onion and a sweet, grassy note. When cooked over fire, their natural sugars caramelise beautifully, creating a sweet, smoky depth that complements a wide range of dishes. They hold their shape well on the grill, softening just enough without becoming mushy, making them ideal for cooking whole or sliced. Lightly oiling and seasoning before grilling helps to enhance their flavour and prevents sticking. A finishing splash of vinegar or a sprinkle of fresh herbs adds brightness and balances the sweetness perfectly. When selecting spring onions, look for firm, crisp white bulbs and vibrant green tops free from wilting or yellowing. Avoid any that feel soft or slimy, as freshness is key to their flavour and texture. Store them wrapped loosely in a damp paper towel inside a perforated plastic bag in the fridge. This keeps them hydrated without trapping excess moisture, which can cause spoilage. Use within a week for the best taste and texture. Spring onions are incredibly adaptable in BBQ cooking. They can be skewered whole alongside other vegetables or meats, chopped into salsas or relishes, or used as a fresh garnish to add crunch and a mild onion hit. Their subtle flavour means they work well with bold, smoky BBQ sauces and rubs without overpowering the dish. Experiment with different finishes like lemon juice, soy sauce, or chilli flakes to find your preferred flavour combination.
Prep
Trim root end only. Leave whole. Oil and season. One of the quickest and most satisfying additions to the grill.
Cook
Very hot direct heat: 2–3 minutes turning once. Green tops char while the white base sweetens. Scatter whole over the grill while other items rest.









