Onion 'Rose de Roscoff'

Allium cepa var. cepa

How to grow Onion 'Rose de Roscoff'

  • Full Sun

  • Medium

Try to plant in a location that enjoys full sun and remember to water moderately. Keep in mind when planting that Rose de Roscoff is thought of as very hardy, so this plant will tend to survive through freezing conditions. Planting Rose de Roscoff 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 Rose de Roscoff from seed

Sow 0.98 inches (2.5 cm) deep with a guideline distance of 1.95 inches (5.0 cm). Soil temperature should be kept higher than 13°C / 55°F to ensure good germination.

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

Transplanting Rose de Roscoff

As Rose de Roscoff 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 Rose de Roscoff