Erica Vale Seeds - Spring Onion White Lisbon Available Australia Wide When to sow Spring / Autumn Sowing Germination Easy (10-14 days) Description: Generally recognised as the best salad or spring onion. The flavour is mild, food value is high and it has long white stems. *Keep free from weeds and how between rows as soon as seedlings emerge When to sow: All year round. Sow every three weeks for continuous supply.