Another improved Japanese variety which is great for early planting and can be harvested from late May to early June. It has a mild flavour and will store well until the following spring in the right conditions. This variety also has a good resistance to bolting.
How to care for onion Radar:
Plant this onion from October to January, 3cm deep and 12cm apart. Lift the onions when they aremature (normally in August) and allow them to dry before using.
Eventual height:
0.4m
Eventual spread:
0.15m
Soil:
Moderately fertile, moist, well-drained soil