Onion 'Yellow Rock'

A full sun position will ensure your plant thrives and remember to water moderately. Yellow Rock is generally regarded as a very hardy plant, so this plant will tend to go dormant over the long winter months. Yellow Rock needs a loamy, clay and sandy soil with a ph of 6.0 to 7.0 (weakly acidic soil to neutral soil).

Aim to sow 0.98 inches (2.5 cm) deep and try to ensure a gap of at least 1.95 inches (5.0 cm). For optimal germination, soil temperature should be a minimum of 13°C / 55°F.

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

Yellow Rock is very hardy, so ensure you wait until all danger of frost has passed in your area before considering planting outside.

This variety tends to mature and be ready for harvest in early autumn.