Onion

Onion: plant 10 cm (3.9 in) apart in the row and 30 cm (11.8 in) between rows, 16 per square (30 cm). Full sun, 6–8 hours a day. Good neighbours: Summer savory, Winter savory, Kapia pepper.

Key facts

Spacing in the row	10 cm (3.9 in)
Between rows	30 cm (11.8 in)
In a 30 cm (1 ft) square	16 per square
Sun	Full sun, 6–8 hours a day
Root depth	25 cm (9.8 in)
Height when grown	40 cm (16 in)
Crop rotation group	Roots and onions
Support	None needed