A large, golden-yellow heirloom that grows well, even in colder climates. The Yellow of Parma Onion stores well and is a rare Italian variety. Long day type. (110 days from transplant)
Start seeds indoors 10 to 12 weeks before the last frost date of spring. Surface-sow or barely cover the seeds. Keep seed trays at cool room temperature and do not allow to dry out. Transplant seedlings after last frost date, spacing them 4 to 6 inches apart.