Onion 'Red Rock'
Onion 'Red Rock' is backordered and will ship as soon as it is back in stock.
Red Rock' has jumbo-sized bulbs that are a vibrant red with an attractive internal dark red colouring. It is a 'short day' onion grown mainly in Queensland and warmer areas. It has good disease resistance and is slow to bolt. The firm bulbs can be stored for several months. This is an F1 hybrid so is not suitable for seed saving.
Product: Onion 'Red Rock'
Product type: SEED ()
Botanical name: Allium cepa
Red Rock' has jumbo-sized bulbs that are a vibrant red with an attractive internal dark red colouring. It is a 'short day' onion grown mainly in Queensland and warmer areas. It has good disease resistance and is slow to bolt. The firm bulbs can be stored for several months. This is an F1 hybrid so is not suitable for seed saving.
Plant type: Cool season annual
Plant height: 35 - 45 cm
Sow when: Germinate best at 10 - 23°C
Temperate: Sow from mid-May to August
Subtropical: March to June
Tropical: End of March to end of May
Germination: 14 - 21 days
Depth: 1 - 2 cm deep
Position: Full sun
Sow where: Sow direct or into a seedling tray; it takes 12 weeks for seeds sown in trays to be ready to transplant
Soil type: Fertile, very well drained, 6.5 - 7 pH; avoid fresh manure or compost
Rows: 25 - 30 cm apart
Details: To transplant onion seedlings (sets), trim the tops and avoid planting them too deeply, less than 1 cm deep
Harvest: 165 days; dry well before storing