Onion 'Swift'

Allium cepa var. cepa

How to grow Onion 'Swift'

  • Full Sun

  • Medium

Swift likes a position of full sun and remember to water moderately. Keep in mind when planting that Swift is thought of as very hardy, so this plant will tend to survive through freezing conditions. Swift needs a loamy, clay and sandy soil with a ph of 6.0 to 7.0 (weakly acidic soil to neutral soil).

Growing Swift from seed

Ensure a distance of 1.95 inches (5.0 cm) between seeds when sowing - look to sow at a depth of approximately 0.98 inches (2.5 cm). Soil temperature should be kept higher than 13°C / 55°F to ensure good germination.

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

Transplanting Swift

Ensure that temperatures are mild and all chance of frost has passed before planting out, as Swift is a very hardy plant.

Harvesting Swift

This variety tends to be ready for harvesting by early autumn.