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250g 'Red Baron' Onion Sets

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Pre-order for dispatch in mid-February

250g "Red Baron" Onion Sets

The mid-late maturing allium cepa "Red Baron" onion plant produces firm, flat-ish round onion bulbs in a beautiful dark red colour. With its eye-catching red-rimmed white flesh, the Red Baron makes an attractive addition to your salad bowl, and can also be cooked into dishes. The flavour is stronger than most varieties, and the onions can store well into winter.

Planting Tip

  • Grow onions alongside mint to deter onion fly!


  • Versatile
  • Crisp Flavour
  • Good Storage Capabilities
  • Size: 250g Bag
  • Type: Onion
  • Hardiness: Fully Hardy
  • Plating Time: March - April
  • Planting Depth: 2cm (1 Inch)
  • Planting Distance: 10cm (4 Inches)
  • Harvesting Time: From Mid-August
  • Uses: Multipurpose
About your plants

Based in the heart of England, our trusted nursery will sow and grow thousands of organic vegetables and herbs each year. When each plant reaches the optimum time to be planted in your garden, we will dispatch it directly to your home. Plant Theory vegetables are entirely organic, and are importantly grown in soil that has been tested by the Soil Association, on an English farm that treats quality and sustainability as of utmost importance.


Each plant is grown and stored in plastic-free materials, and for this we are very proud. These include the biodegradable fibre pots that each vegetable is grown in (which can be placed straight in the ground). When ready, they will be carefully wrapped up in specially-designed and sustainably-sourced cardboard packaging. We additionally use moisture-resistant wax paper to keep every plant safe, and subsequently fill each box with straw for added padding. All packaging will be extensively trialled to ensure that your plants arrive safely, but we will still utilise a delicate-parcels courier just to be certain.
How your order will arrive

When Your Plants Arrive…

  • Unpack your plants: Preferably straight after they arrive, you should carefully unpack your plants. They may appear slightly tired after their journey, however they will soon perk up again.
  • Identify each plant: Each type of plant (but not each individual plant) will be clearly labelled. Lay them out into their respective plant types (such as wild rocket, cauliflower, or peas).
  • Provide a drink: The roots of your plants may be dry, so provide all of them with a nourishing drink of water. Ensuring that the roots are stood upright, submerge the roots of each plant for a few minutes in a container of clean water.

Planting Your Vegetables or Herbs…

  • Their position: For the best results, plant your vegetables in a site that receives full sun.
  • Soil types: You should always avoid waterlogged soils. This is because they can lead to root rot and compacted surroundings, which will hinder your vegetables’ growth.
  • Planting distance: Plant your plugs between 15 - 20cm apart, and keep their stems level with the soil. Each row is best spaced 15 - 30cm away from one another.
  • Watering requirements: Water when planting, and also during periods of drought.
  • Hardiness: Our trusted nursery staff will attentively care for your vegetables, and only deliver them when it is warm enough for them to be planted in your garden.

More Information
Common Name Onion
Harvest Month August
Plant Family Alliums
Needs Ericaceous Compost? No
Type Onions & Leeks
Veg Type Vegetable
Supplied As 250G Bag