When to plant onion in Wirrina Cove
- Sow in the ground: mid Jan to early SepWirrina Cove area, cool Mediterranean
Worked out from 30 years of climate records for Wirrina Cove. Microclimates vary: frost hollows and hills run later.
A staple crop sown in autumn and winter in Adelaide and harvested in late spring and summer. Choosing the right type matters: onions bulb according to day length, so use short- or intermediate-day varieties suited to southern Australia. Keep beds weed-free, as onions hate competition.