(Allium cepa) Onions are native to many parts of the world, but most of the domesticated onions that we enjoy today are believed to have originated in Central Asia. When choosing a variety of onion, please take into account your location, as there are different types suited to your daylength and choosing the wrong type can result in poor bulb formation. Long-day onions tend to do best in the north and short-day types tend to do best in the south. There are also intermediate varieties, which can grow in middle range areas as well as a wide range of zones. Growing onions from seed is often the only way to get varieties really suited to your location. Heirloom onion seeds are usually started indoors in late winter for transplanting outside a month or so before the last frost of spring. Start onion seeds indoors 8-12 weeks before the last frost date of spring. Ideal germination temperature is 65-75F. Given ideal temperatures, seeds will germinate in 7-14 days, though germination will take longer in cooler soil. Sow seeds 1/4 inch deep. Onions prefer to grow in cooler temperatures (60 degrees F is ideal), and they will start out slowly. Onions prefer full sun and regular watering. Set out acclimated, stocky seedlings 2-4 weeks before the last frost of spring. Space plants 4-5 inches apart. Note: We can ship onion seeds outside the U.S., but we cannot ship onion bulbs internationally.
(Allium fistulosum) Average 40-50 days to maturity. A uniform and flavorful bunching onion, it is a popular and traditional Japanese variety for sukiyaki, soup and salads. Ishikura reaches enormous proportions (to two feet tall, one inch across) while remaining tender and scallion-like, never forming a bulb. A perfect heat- and cold-tolerant green that is a go-to choice to grow alongside Asian greens in the cool season! No garden should be without this easy-to-grow culinary staple!