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Red Karmen Onion set
  • Red Karmen Onion set

Red Karmen Onion Set

TA lovely dark-red onion that produces a heavy crop of red-skinned bulbs with a sweet, yet crunchy white flesh. Stores well. DELIVERY STARTS MID FEB

Out of stock

    Allium cepa


    120 Days


    Hardy Annual

  • Plant Size

    Height Up To 45cm (17.7in) Spread Up To 10cm (3.9in)

  • Hardiness & Longevity

    Hardy Annual

  • Ideal For

    Kitchen Garden

  • Position In

    Full Sun


Red Karmen Onion Set

[120 days] Sometimes called ‘Spanish onions’ or ‘salad onions,’ Red Karmens have an exceptionally delicate, sweet taste that makes them perfect for salads, sliced on top of burgers, or any cooked dishes that require a light, sweet onion. The bulbs come out flattened yet globe-shaped, and the flesh is a crisp white with quite beautiful light-crimson circles between the scales.

Easy to grow. And if you want green onions as well, plant with the sets nearly touching, then harvest every other onion once the tops reach 6” tall. Just don’t plant before April—they like the longer days.

Common Questions

What is a Red Karmen Onion set? Red Karmen Onion sets are part-grown bulbs, that continue to grow once planted out in your garden or containers. Sets can be planted at different times of the year depending on the variety.

Should you soak Red Karmen Onion Sets before planting in the garden? You don't have to soak your onion sets before planting, however many gardeners believe that soaking your onion sets will sprout quicker than without. The main benefit of soaking your Red Karmen Onion sets before planting is to increase germination rates.

How deep do you plant bulbs from a Red Karmen Onion set? You should plant your Red Karmen Onion sets as soon as the soil in your garden can be moved. Plant the onions at a depth of 1 1/2 inches, in rows 15 inches apart.

Sow and Harvest Times

Plant out:

Product Features

Germination Time
14 - 21 Days
Sowing Method
Direct to Ground
Days to Maturity
100 - 175 Days
Grow in Greenhouse
Optional, for Early Crop
Number of Seeds Per Packet
250g (68 - 80 sets)
Recommended Soil pH
5.6 - 6.6


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