The secret to growing really sweet, mild onions is to start with a sweet, short-day variety and have soil that is very low in sulfur. 'Yellow Granex PRR' (pink root resistant) is one of the few varieties approved by the Georgia Agricultural Commission to be sold as a Vidalia® onion when it is grown in approved areas near Vidalia, GA. Large (3"–4") and excellent for eating fresh. As a short-day onion, it grows best from fall to spring in the southern states, south of the 35th parallel. Not recommended for cold-climate areas unless greenhouse grown.
Days to Maturity: 110–160 days
Family: Alliaceae
Type: Short-day, Sweet onion (Learn more)
Native: Exists only in cultivation
Hardiness: Biennial grown as an annual
Variety Info: Large, 3"–4" yellow, flattened globe-shaped onions, crisp and sweet. 'Yellow Granex PRR' has resistance to pink root disease (PRR). The Granex-type onion is a hybrid cross between a round Grano onion and a flat Bermuda onion, and are said to be the sweetest of the super sweet onions.
Attributes: Disease Resistant, Sweet
