'Yellow' is a Onion variety in the Allium genus with a scientific name of Allium cepa var. cepa. When ripe, fruit appear in these approximate colours: Medium champagne and Floral white. Leaves appear approximately as a Cal Poly green colour. Yellow grows as a Perennial and is a Vegetable. Being a Perennial, it tends to grow best over several years (approx 3 years and greater). Yellow is known for growing to a height of approximately 45.0 cm (that's 1.46 feet in imperial).
Yellow Onion is normally quite a low maintenance plant and is normally very easy to grow - great for beginner gardeners!
This variety plant info is provided by the myfolia gardener's wiki. All details about Yellow have been kindly provided by our members.
By our calculations, you should look at sowing Yellow about 28 days before your last frost date.