If you grow Spanish-type onions from seed they should be started indoors in February. If you can buy onion sets you can plant the small bulbs in the ground about the same time you plant peas. Spanish onions need long days to produce their bulbs. The onions will grow tops in cool weather and form bulbs when the weather warms.
If you grow Spanish-type onions from seed they should be started indoors in February. If you can buy onion sets you can plant the small bulbs in the ground about the same time you plant peas. Spanish onions need long days to produce their bulbs. The onions will grow tops in cool weather and form bulbs when the weather warms.