PHOTO: nociveglia/Flickr
Size: Varies by season; each leaf represents a ring of onion.
Sunlight requirements: Full sun.
Water requirements: More water equals stronger flavor.
Soil requirements: Well-drained soil; pH between 6.2 and 6.8.
When to plant: Just before the last frost and after the soil has dried.
Where to plant: Can be planted close together: between eight to 10 onions per foot.
When to harvest: 111 to 125 days from seed.
Produce storage: Sauté or pickle; store in a mesh bag in a cool, dry place after drying; do not keep as well as red and yellow onions.
