Onion Stuttgarter Seeds

Onion Stuttgarter Seeds

Onion Stuttgarter Seeds produce firm, flattened bulbs with golden-brown skins and crisp white flesh. This traditional onion variety is grown for its distinctive shape, flavour and storage qualities, making it suitable for kitchen gardens, allotments and raised beds.

Stuttgarter Onion develops medium-to-large bulbs with a mild to moderately strong onion flavour. The firm flesh is suitable for roasting, frying, soups, stews and everyday cooking, while the mature onions can be dried and stored for use beyond the growing season.

Growing onions from seed allows gardeners to raise their own plants from an early spring sowing. Stuttgarter grows best in a sunny position with fertile, well-drained soil and benefits from regular weeding and consistent moisture during establishment. The bulbs are generally ready for harvesting during late summer.

Key Features

Produces firm, flattened onions with golden-brown skins.

Medium-to-large bulbs with crisp white flesh.

Traditional variety known as Stuttgarter.

Mild to moderately strong onion flavour.

Suitable for roasting, frying, soups and everyday cooking.

Good storage qualities when properly dried and cured.

Can be grown from seed for late summer harvesting.

Suitable for kitchen gardens, allotments and raised beds.

How to Grow Onion Stuttgarter Seeds

Sow Onion Stuttgarter Seeds indoors from January to March in trays or modules filled with good-quality seed compost.

Sow seeds thinly approximately 1cm deep, covering lightly with fine compost.

Maintain a temperature of around 15–20°C and keep the compost lightly moist without waterlogging.

Germination generally takes approximately 10–21 days, depending on temperature and growing conditions.

Once seedlings are established, grow them on in bright, cool conditions to encourage sturdy growth.

Gradually harden young plants off before transplanting outdoors during spring when the soil is workable and conditions are suitable.

Alternatively, sow seeds directly outdoors from March to April into finely prepared soil.

Choose a sunny position with fertile, well-drained soil. Prepare the growing area by removing weeds and breaking up compacted ground.

Transplant or thin seedlings to approximately 10cm apart, allowing around 30cm between rows for access and bulb development.

Water regularly while young plants establish and during prolonged dry periods, particularly when the bulbs begin to swell.

Keep the growing area free from weeds, as onions compete poorly with surrounding vegetation.

Avoid excessive nitrogen feeding later in the growing season, as this can encourage leafy growth and delay bulb maturity.

Harvest during August to September, once the foliage begins to yellow and naturally fall over.

Lift the bulbs carefully and allow them to dry thoroughly in a warm, airy position before storing somewhere cool, dry and well ventilated.

Onion Growing Tips

Start seeds indoors early to provide a long growing season.

Grow seedlings in bright conditions to prevent weak, stretched growth.

Choose freely draining soil to reduce the risk of rotting.

Avoid planting into freshly manured ground.

Keep the growing area free from weeds.

Water during prolonged dry weather while bulbs are developing.

Reduce watering as the foliage begins to yellow and bulbs approach maturity.

Allow harvested onions to dry thoroughly before storing.

Store only firm, undamaged bulbs with properly dried necks.

Rotate onion crops to reduce the risk of soil-borne diseases.

Frequently Asked Questions

What type of onion is Stuttgarter?
Stuttgarter is a traditional onion variety producing firm, flattened bulbs with golden-brown skins and white flesh.

What do Stuttgarter Onions taste like?
The bulbs have a mild to moderately strong onion flavour, making them suitable for a wide range of cooked dishes.

When should Onion Stuttgarter Seeds be sown?
Sow indoors from January to March or directly outdoors from March to April when soil conditions are suitable.

Can Stuttgarter Onions be grown from seed?
Yes, Stuttgarter can be grown from seed, with early indoor sowing providing a longer growing season for bulb development.

Are Stuttgarter Onions suitable for storage?
Yes, mature bulbs have good storage qualities when properly dried and kept in cool, dry, well-ventilated conditions.

When can Stuttgarter Onions be harvested?
Bulbs are generally ready from August to September, once the foliage begins to yellow and fall over naturally.

Can Stuttgarter Onions be grown in raised beds?
Yes, onions grow well in raised beds provided the soil is fertile and drains freely.

How far apart should Stuttgarter Onions be planted?
Thin or transplant seedlings to approximately 10cm apart, allowing around 30cm between rows.

Perfect For

Kitchen gardens

Allotments

Raised beds

Growing onions from seed

Traditional onion growing

Roasting and frying

Soups and stews

Winter storage