Onion Red Baron – four whole red onions on a rustic wooden surface

Onion Red Baron

£1.80
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Onion Red Baron – four whole red onions on a rustic wooden surface
RHS Award of Garden Merit

Onion Red Baron

Allium cepa 'Red Baron'

Deep crimson skin and beautiful red and white rings when sliced, with more bite than a yellow onion. Cured well, it stores until the next crop is ready.

£1.80

Free UK delivery on seed orders over £30

Dispatched from our Norfolk farm — Royal Mail, usually within one working day.

Your growing year

Sow, plant out and harvest months for this variety

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sow
Plant out
Harvest
SowPlant outHarvest

At a glance

Height
60cm (foliage)
Spread
10-15cm
Spacing
10-15cm
Position
Full sun, open ground.
Seeds per packet
200
Soil
Fertile, well-drained.
Grow guide How to grow Onion Red Baron Read the full guide →

About this variety

The deep ruby onion that has become the standard red in British gardens and supermarkets alike. Medium globes of 150 to 200 grams with intense red-purple skin and red-ringed white flesh — cut one across and the rings glow.

Where Ailsa Craig is the show onion, this is the everyday size, right for a single recipe rather than feeding a household from one bulb. The flavour is the proper red-onion profile: sweeter and milder than a yellow, with a slight sharpness that softens completely when cooked.

Its real advantage is keeping. Most red onions store poorly, but a well-cured Red Baron holds from harvest through to March or April, which means you can grow your entire winter supply rather than buying them.

RHS Award of Garden Merit

The RHS Award of Garden Merit is given to plants of outstanding excellence for ordinary garden use. To earn this award a plant must be of good constitution, available to the gardening public, and perform reliably across a range of UK growing conditions. It is one of the most trusted plant recommendations in British gardening and a genuine mark of quality.

Learn more at RHS.org.uk →