Skip to product information
1 of 3

Botanical Interests

Yellow Granex PRR Bulb Onion Seeds

Yellow Granex PRR Bulb Onion Seeds

Regular price $2.99
Regular price Sale price $2.99
190.0 seeds
Sale Sold out
Shipping calculated at checkout.

Product Details

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.

View full details
  • Variety Info
  • Sowing Info
  • Growing Info

Variety Info

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

Sowing Info

When to Sow Outside: 4 to 6 weeks before your average last frost date, or as soon as soil can be worked; when soil temperature is at least 45°F.

When to Start Inside: RECOMMENDED. 10 to 12 weeks before your average last frost date. Transplant outdoors 4 to 6 weeks before your average last frost date. The earlier the start, the bigger the bulb. Ideal soil temperature is 60°–85°F.

Days to Emerge: 7–15 days

Seed Depth: ¼"

Seed Spacing: A group of 2 seeds every 4"

Row Spacing: 12"–16"

Thinning: When 2" tall, thin to 1 every 4"

Growing Info

Harvesting: When onion tops have fallen over and turned yellow or brown, they are ready for harvest. Harvest in the morning, lifting onions with a garden fork. Dry them in the garden in the sun for 2 to 3 days, lightly covering the bulbs with straw, or the tops of other onions to prevent sunscald. Cure onions for 3 to 7 days in a dry area with good air circulation. Once dry, cut the roots to 1/4", and the greens to 1" to create a seal, preventing decay.