Best Onion Vegetable Seeds of 2025

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Onion vegetable seeds are a popular choice for gardeners and farmers looking to grow their own fresh produce. These seeds are specially bred to produce high-quality onions with a range of flavours, colours, and sizes. Whether you're looking to grow onions for cooking, pickling, or storage, there's a variety of onion seed available to suit your needs. With the right care and attention, onion vegetable seeds can produce a bountiful crop of delicious onions that will add flavour and nutrition to your meals.
At a Glance: Our Top Picks
Top 10 Onion Vegetable Seeds
Mr Fothergills Bedfordshire Champion Onion Seeds
The Mr Fothergills Onion Seeds are excellent for gardeners seeking heavy cropping varieties. These seeds produce large, well-flavoured onions that range from yellow to light brown, perfect for enhancing the taste of your dishes. You will appreciate their excellent keeping qualities, allowing you to store them for extended periods. Additionally, as a good source of vitamin C, these onions contribute to your overall health. Remember to dry them before storing in a cool, dry room for best results.
Premier Seeds Direct Exhibition Onion Seeds
The Exhibition Onion Seeds from Premier Seeds Direct are a professional choice for avid gardeners. Being DEFRA licensed ensures that you receive high-quality seed supply, giving you peace of mind. The minimal packaging is environmentally friendly, reducing waste and making storage easier for you. While instructions are not attached, you can refer to the detailed cultivation advice provided above, allowing you to cultivate your onions with confidence and ease.
Mr Fothergill's Spring White Lisbon Onions
Mr Fothergill's Spring White Lisbon Onions are a fantastic choice for your garden. These onions produce mild, tasty white bulbs that are perfect for enhancing salads and stir fries. They are quick and easy to grow, making them ideal for beginners. You will also benefit from their high vitamin C content, which is great for your health. Plus, they thrive in containers or pots, allowing you to enjoy gardening even in limited spaces like patios or balconies.
Welldales 50 Giant Sweet Spanish Onion Seeds
The Welldales Spanish Onion Seeds are fast-growing seeds that germinate in just 10-12 days, allowing you to enjoy your homegrown onions sooner. With a harvest time of approximately 120 days, you can expect large, sweet onions that are ideal for UK gardeners. These seeds are resilient, tolerating poorer conditions and resisting pests, making them easy to grow. Additionally, the excellent storage capabilities ensure you can enjoy your onions long after harvest.
Mr Fothergill's White Lisbon Onion Seeds
Mr Fothergill's White Lisbon Onion Seeds are a hardy and versatile choice for your garden. They can withstand winter conditions, allowing you to enjoy fresh onions in spring. This variety is a quick grower, making it perfect for those who want speedy results. Additionally, these onions are a good source of vitamin C, contributing to your overall health. They are particularly suited for harsher climates, making them an excellent option for various growing conditions.
Mr Fothergill's Red Baron Onion Seeds
Mr Fothergill's Red Baron Onion Seeds offer high yields of attractive blood-red globes that are sure to enhance your garden. With an excellent flavour, these onions are perfect for adding a tasty punch to your dishes. Additionally, they are a good source of vitamin C, contributing to a healthier diet. You can also store them well, ensuring you have fresh onions available for longer. Just remember to allow them to dry before storing in a cool, dry room for optimal preservation.
Mr Fothergill's Guardsman Spring Onion Seeds
Mr Fothergill's Onion Seeds are British bred salad onions known for their vigorous growth and strong upright leaves. You will appreciate their supreme, non-pungent flavour, making them perfect for fresh salads and culinary dishes. These onions are also a good source of vitamin C, boosting your health while enhancing meal flavours. They are slow to bulb, which means you can enjoy a steady supply throughout the summer, whether you grow them in your vegetable garden or in pots on your patio.
Long White Ishikura Spring Onion Seeds Pack
The Ishikura Spring Onion Seeds are perfect for enhancing the flavour of your dishes, whether in stir fries, salads, or soups. This hardy Japanese variety grows long white stalks and can be cultivated indoors or outdoors, providing fresh spring onions in just three months. You can easily plant them in well-drained soil, and with the right care, expect a generous harvest from June to November. Plus, they fill gaps in your garden, making efficient use of space between slower-growing crops.
Thompson and Morgan Spring Onion 'White Star'
The Spring Onion 'White Star' offers a delightful zing to your culinary creations. These seeds produce unique golf ball-sized bulbs that pack a stronger flavour than standard spring onions, enhancing your dishes. You can sow them successively throughout the summer, ensuring a generous and continuous harvest for an extended period. With 175 seeds included in each packet, you'll have plenty to enjoy fresh from your garden, making it an excellent choice for home gardeners.
Purple Spring Onion Lilia Seeds for Planting
The Lilia Spring Onion Seeds offer a dual-purpose option for your garden. You can enjoy the intense onion flavour by harvesting them young as salad onions, or allow them to mature into deep purple bulbs. Planting is easy; simply sow the seeds in well-drained soil, ensuring a distance of 20cm between each. For an extended harvest, it’s best to plant them between March and September. These seeds are also resilient, making them ideal for filling gaps in your garden and teaching children about growing their own food.
Frequently Asked Questions (FAQs)
1. Can you grow onion from seeds?
Growing onions from seed is easy, and allows you to choose the exact varieties you want to grow! Purchasing started seedlings or sets is also a great option, and will give you a quicker start than seed. Onion seedlings are like small green onions, recently started from seed (within the last couple months).
2. Which onion seed is best?
15 of the Best Onion Varieties for the Home Garden. Ailsa Craig.Italian Torpedo.Red Burgundy.Utah Yellow Sweet Spanish.Walla Walla.White Grano.White Sweet Spanish.
3. Which is the best month to sow onion seeds?
Onion seeds can be planted directly in the garden bed. However, when growing onion seed, some people prefer to start them indoors. This can be done in late autumn. The best time for planting onion seeds outdoors is in spring, as soon as the soil can be worked in your area.
4. How long does it take to grow onion from seed?
Onions are cool-season crops that require 90 days or more to reach maturity. Because of this long growing season requirement and their preference for cooler weather, planting onion seeds directly into the garden in the spring makes it difficult for the bulbs to reach a good size before warm temperatures arrive.
During our onion vegetable seed research, we found 147 onion vegetable seed products and shortlisted 10 quality products. We collected and analyzed 10,351 customer reviews through our big data system to write the onion vegetable seeds list. We found that most customers choose onion vegetable seeds with an average price of £2.90.
The onion vegetable seeds are available for purchase. We have researched hundreds of brands and picked the top brands of onion vegetable seeds, including Mr Fothergills, Premier Seeds Direct, Welldales, Meldon Seeds, Thompson & Morgan.

Toby Butcher is a Horticulturist, and he earned his title as a Master Gardener in 2016. Toby has acquired a 25-year experience as a home gardener planting, designing, grooming vegetables and flowers. He is the leader of a plant group in Durham. Toby owns a blog where he publishes articles on growing and growing your flowers at home, in a vase, or in a garden.