Unwins Onion Fasto F1 - 300 Seeds – Early Golden Storage Onion

Unwins Onion ‘Fasto’ F1 Seeds

Onion ‘Fasto’ F1 is a reliable, heavy-cropping variety producing uniform, golden-skinned bulbs with excellent flavour and storage potential. This early-maturing F1 hybrid offers consistent results and dependable yields, making it ideal for both gardens and allotments.

Fasto F1 develops firm, well-shaped yellow onions that can be stored for several months when kept in cool, dry, and dark conditions. Its rich, savoury flavour makes it perfect for everyday cooking — especially when gently sweated down as a base for soups, stews, and sauces.

Easy to grow and robust, this variety is a great choice for growers wanting an early crop that also keeps well.

Pack contains 300 seeds.

Key Features

F1 hybrid onion variety

Uniform, golden-skinned bulbs

Early maturing

Heavy cropping

Stores well for several months

Excellent flavour for cooking

Reliable and consistent performance

Pack contains 300 seeds

Growing Information

Sowing Time: February to April (indoors)

Sowing Depth: 10 mm

Germination: 2–3 weeks

Time to Harvest: Approx. 5 months

Plant Spacing: 15 cm

Row Spacing: 30 cm

Height: 40 cm

Spread: 15 cm

Sow seeds indoors in trays or modules filled with fine seed compost. Cover lightly and keep moist.

Transplant seedlings once large enough to handle and plant outdoors after the risk of frost has passed. Grow in a sunny position with well-drained, fertile soil.

Keep beds weed-free and water during dry spells. Harvest onions once foliage begins to yellow and fall over. Cure thoroughly before storing in a cool, dry place.

Frequently Asked Questions

Is Fasto F1 an early variety?
Yes. It is an early-maturing onion, ready to harvest in around five months.

Does it store well?
Yes. Fasto F1 can be stored for several months when kept cool, dry, and dark.

Is it suitable for beginners?
Yes. It is a reliable and easy-to-grow variety.

What is it best used for?
Perfect for cooking — especially for creating flavourful bases for soups and stews.

Perfect For

Garden and allotment growing

Growers wanting early onions

Long-storing crops

Everyday kitchen use

Beginner and experienced gardeners