Ailsa Craig produces large globe shaped bulbs with a mild flavour beneath golden straw coloured skin. This variety makes for a good exhibition onion but does not store for long periods and should be used in early winter.

One of the most popular crops for the gardener, onions are a huge must for any allotment holder or for the gardener who has their own little vegetable garden at home, as they are so versatile and can be used for a variety of different things.

WHEN TO SOW

December to April

Where to Sow

Sow underglass in pots or seed trays , sow seed on the surface of seed sowing compost and lightly cover with a sprinkling or vermiculite or compost , and place at a temprature of 14°C. For smaller onions outdoor sowings can be made in April , sow seed thinly in shallow drills 1.5cm (1/2in) deep, with rows spaced 30cm (12in) apart.

What to do next

Seedlings can be pricked out into individual pots or modular trays. Move plants to a cold frame in April to gradually harden off before planting outside 30-45cm (12-18in) apart between the plants and 45cm(18in) between the rows. Thin outdoor sowings to 15-30cm (6-12in) apart.

MATURITY

August to September

HANDY TIP

Onions require a very fertile soil. Dig the Onion bed in the Autumn incorporating manure or compost.

NUTRITIONAL VALUE

Antibacterial and Antiseptic properties, due to beneficial sulphur compounds. A good source of antioxidants, such as quercetin and anthocyanin. Vitamin C, Calcium and Iron.