Best Onion Plant Bulbs of 2026

Toby Butcher Avatar
Toby Butcher
Last Updated: 5 Feb 2026

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Onion plant bulbs are a popular choice for gardeners looking to grow their own fresh and flavourful onions. These bulbs are typically sold in sets and can be planted in the ground or in containers. Once planted, the bulbs will sprout and grow into full-sized onion plants, ready for harvesting in the summer months. Onion plant bulbs come in a range of varieties, each with their own unique flavour and characteristics. They are a great addition to any vegetable garden and can be used in a variety of dishes.

At a Glance: Our Top Picks

Viridis Hortus Sturon Onion Sets 250g Quality Bulbs Cover #TOP 1
Viridis Hortus Sturon Onion Sets 250g Quality Bulbs
ftb score rating icon 9.9
Onion Set Hercules F1 50 by Taylors Bulbs Cover #TOP 2
Onion Set Hercules F1 50 by Taylors Bulbs
ftb score rating icon 9.8
Jamieson Brothers Centurion Onion Sets - 50 Pack Cover #TOP 3
Jamieson Brothers Centurion Onion Sets - 50 Pack
ftb score rating icon 9.6

Top 7 Onion Plant Bulbs

#TOP 1

Viridis Hortus Sturon Onion Sets 250g Quality Bulbs

ONIONS002-001
white
Viridis Hortus Sturon Onion Sets 250g Quality Bulbs Cover
Viridis Hortus - Onion Sets - Sturon - 250g's Vegetable Bulbs (Approx. 60-80 Quality Sets Qty are Size Dependent Sold by WEIGHT)

The Viridis Hortus Sturon Onion Sets offer approximately 60 to 80 quality baby onions, making them perfect for growing large bulbs with less effort. These sets are resistant to bolting, so you get a better yield without the onions prematurely flowering. Planting onion sets is much easier than growing from seeds, saving you time and reducing hassle. The sets come in a convenient size of 14-21mm, ideal for planting in fertile, well-drained soil. With the Viridis Hortus Sturon Onion Sets, you can enjoy a straightforward and rewarding gardening experience.

What We Like
Easy to grow from sets
Produces large, quality bulbs
Resistant to bolting
Quick sprouting in weeks
Supplied in convenient size
#TOP 2

Onion Set Hercules F1 50 by Taylors Bulbs

Onion Set Hercules F1 50 by Taylors Bulbs Cover
Onion Set Hercules F1 50 by Taylors Bulbs

The Hercules F1 50 Onions by Taylors Bulbs are an excellent choice if you want onions that store well, allowing you to keep them fresh for longer periods. With a strong flavour, these onions add a robust and rich taste to your meals. Additionally, this variety has been recognised with the RHS Award of Garden Merit, assuring you of its quality and performance in your garden. These features make the Hercules F1 50 Onions a reliable and flavourful option to grow or buy.

What We Like
Good for long storage
Strong, rich flavour
RHS Award of Garden Merit
#TOP 3

Jamieson Brothers Centurion Onion Sets - 50 Pack

Centurion
Orange,White
50 PACK
Jamieson Brothers Centurion Onion Sets - 50 Pack Cover
Centurion Onion Sets - 50 Pack Bulb Size 14/21 - Grow Your Own Onions – for Cooking, Salads, Garnish & Casseroles – Ready to Plant Now - by Jamieson Brothers

The Centurion Onion Sets from Jamieson Brothers are easy to grow and perfect for various dishes like salads and casseroles. To ensure success, you should plant them in well-draining soil, ideally in raised beds, which help prevent waterlogging. Remember to rotate your crops to avoid common onion issues. Once planted, minimal care is needed; only water during dry spells, allowing you to enjoy gardening without too much hassle.

What We Like
Easy to plant and care for
Suitable for various dishes
Well-draining soil recommended
Crop rotation helps prevent issues
Minimal watering required
#TOP 4

Jamieson Brothers Stuttgarter Giant Onion Sets 50 Pack

Stuttgarter
White
50 PACK
Jamieson Brothers Stuttgarter Giant Onion Sets 50 Pack Cover
Stuttgarter Giant Onion Sets - 50 Pack Bulb Size 14/21 - Grow Your Own Onions – for Cooking, Salads, Garnish & Casseroles – Ready to Plant Now - by Jamieson Brothers

The Jamieson Stuttgarter Onion Sets are ideal for growing your own onions at home. To get the best results, plant them in well-drained soil or raised beds, which help prevent waterlogging and promote healthy growth. Crop rotation is recommended to avoid common issues like stem eelworm and white rot, keeping your onions strong and productive. Once planted, these sets require minimal care, with occasional watering only during dry spells, making them a convenient choice for gardeners wanting fresh onions with little effort.

What We Like
Easy to grow from sets
Requires little watering
Helps prevent common diseases
Suitable for raised beds
#TOP 5

Jamieson Brothers Setton Onion Sets 50 Pack

Setton
White
50 PACK
Jamieson Brothers Setton Onion Sets 50 Pack Cover
Setton Onion Sets - 50 Pack Bulb Size 14/21 - Grow Your Own Onions – for Cooking, Salads, Garnish & Casseroles – Ready to Plant Now - by Jamieson Brothers

The Jamieson Brothers Onion Sets are ideal for growing your own onions with ease. Plant them in well-drained soil or raised beds to ensure healthy growth and avoid waterlogging. Crop rotation is recommended to prevent common onion diseases, keeping your plants strong. Once planted, the sets require minimal watering unless the soil becomes very dry, making them low-maintenance. For planting, loosen the soil and space the sets properly, ensuring the tips just show above the surface for the best start. These onion sets provide a simple way to grow fresh onions in your garden.

What We Like
Easy to grow from sets
Requires minimal watering
Prevents common onion diseases
Suitable for raised beds
Simple planting instructions
#TOP 6

Jamieson Brothers Red Baron Onion Sets 50 Pack

Red Baron
Orange,Red,White
50 PACK
Jamieson Brothers Red Baron Onion Sets 50 Pack Cover
Red Baron Onion Sets - 50 Pack Bulb Size 14/21 - Grow Your Own Onions – for Cooking, Salads, Garnish & Casseroles – Ready to Plant Now - by Jamieson Brothers

The Red Baron Onion Sets from Jamieson Brothers are easy to grow in well-drained soil, making raised beds an ideal choice for better drainage. By rotating your crops, you help prevent common onion problems like stem eelworm and white rot, ensuring a healthier harvest. If you see orange pustules on leaves, it’s usually rust, which won’t harm your onions. After planting, these sets need minimal watering unless the soil is very dry in summer, and you should remove weeds carefully by hand to avoid damaging your onions.

What We Like
Easy to grow in well-drained soil
Prevents common onion diseases
Minimal watering required
Hand weed removal recommended
#TOP 7

TAYLORS Red Baron Onion Sets Pack of 50

TAYLORS
VP220
TAYLORS Red Baron Onion Sets Pack of 50 Cover
TAYLORS Onion Red Baron x 50 Sets

The TAYLORS Red Baron Onions come as a pack of 50 sets, perfect for growing your own fresh onions at home. These onions have white flesh with attractive red rings, adding a colourful touch to your salads and meals. Ideal for salad lovers, they bring a crisp and flavourful ingredient to your dishes. Additionally, this variety has been awarded the RHS Award of Garden Merit, ensuring you are choosing a reliable and high-quality onion set to grow with confidence.

What We Like
Pack of 50 sets
Great for salads
Attractive white flesh, red rings
RHS Award of Garden Merit
Buying Guide Image

Frequently Asked Questions (FAQs)

1. Can you grow an onion bulb from an onion?

And you're wondering, “Can I plant these sprouted onions and regrow a new, fresh onion?” In short the answer is, YES! You can plant a sprouted onion and grow a new one. Actually, usually you can get sometimes get three new onions from one sprouted onion!

2. How long do onion bulbs take to grow?

Since onions already take a long time to mature, you can start them indoors. An onion's average growth rate is 100 to 175 days till maturity.

3. When should you plant onion bulbs?

Onions are a cool-season crop and can stand temperatures well below freezing. They may be planted from seeds, from small bulbs called sets, or from transplants. Seeding costs the least but takes longer before onions are ready. When seeding onions for bulbs, plant them ¼ inch deep during October through December.

4. Do onions bulbs multiply?

Multiplying onions, sometimes called bunching onions or "potato" onions, grow on a pretty simple principle: You plant one bulb, and as it grows, it divides into a clump of several more bulbs.

Editor's Notes

During our onion plant bulb research, we found 81 onion plant bulb products and shortlisted 7 quality products. We collected and analyzed 4,648 customer reviews through our big data system to write the onion plant bulbs list. We found that most customers choose onion plant bulbs with an average price of £6.61.

The onion plant bulbs are available for purchase. We have researched hundreds of brands and picked the top brands of onion plant bulbs, including Viridis Hortus, Taylors Bulbs, Jamieson Brothers, TAYLORS.

Written by
Toby Butcher Avatar

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.