1. Planning and Preparation:
- Select a suitable location: Red Grano onions thrive in a sunny spot with well-drained soil. Make sure the area receives a minimum of 6 hours of sunlight per day.
- Soil preparation: Prepare the soil by loosening it with a garden fork or tiller. Add compost or well-rotted manure to enrich the soil with nutrients.
- pH levels: Aim for a slightly acidic to neutral pH range of 6.2 to 7.0. Conduct a soil test to determine the soil's acidity level and make necessary adjustments.
2. Planting:
- Choose the right time: Red Grano onions are typically planted as sets, which are small onion bulbs. Plant them in early spring, as soon as the soil can be worked and the danger of frost has passed.
- Spacing: Plant the sets 2 inches apart and bury them about 1 inch deep in the soil. Leave a space of 12-16 inches between rows.
- Weed control: Keep the area around the onion plants free from weeds, as they can compete for nutrients and water.