Onion 'Rosanna'

Try to plant in a location that enjoys full sun and remember to water moderately. Keep in mind when planting that Rosanna is thought of as very hardy, so this plant will tend to survive through freezing conditions. Rosanna requires a loamy, clay and sandy soil with a ph of 6.0 - 7.0 - it grows best in weakly acidic soil to neutral soil.

Try to aim for a seed spacing of at least 1.95 inches (5.0 cm) and sow at a depth of around 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 Rosanna about 28 days before your last frost date.

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