Seed Swaps

Onion 'red odourless'

Allium cepa var. cepa

  • 3 plantings
  • 0 available for swap
  • 0 wanted
  • 4 stashed

Belonging to the Allium genus (Allium cepa var. cepa 'red odourless'), red odourless is a variety of Onion. This variety is a Vegetable that typically grows as an Perennial, which is defined as a plant that matures and completes its lifecycle over the course of three years or more. red odourless is known for growing to a height of approximately 45.0 cm (that's 1.46 feet in imperial).

Due to how easy it is to grow in a variety of conditions, red odourless Onion is great for beginner gardeners and those that like low maintainance gardens.

This variety plant info is provided by the myfolia gardener's wiki. All details about red odourless have been kindly provided by our members.

How to grow red odourless

  • Full Sun

  • Medium

Try to plant in a location that enjoys full sun and remember to water moderately. Keep in mind when planting that red odourless is thought of as very hardy, so this plant will typically do well in a variety of different extremes of cold temperature. The USDA Hardiness Zones typically associated with red odourless are Zone 3 and Zone 10. Planting red odourless in loamy, clay and sandy soil with a ph of between 6.0 and 7.0 is ideal for as it does best in weakly acidic soil to neutral soil.

Growing red odourless from seed

Sow at a depth of approx. 0.98 inches (2.5 cm) and aim for a distance of at least 1.95 inches (5.0 cm) between Onion plants. Soil temperature should be kept higher than 13°C / 55°F to ensure good germination.

By our calculations, you should look at sowing red odourless about 28 days before your last frost date.

Transplanting red odourless

As red odourless is very hardy, ensure temperatures are mild enough to plant out - wait until after your last frost date to be on the safe side.

Harvesting red odourless