Growing Non-GMO Early White Grano PRR Onion Vegetable Seeds
- Latin Name: Allium cepa
- Hardiness Zone: Annual 3-10
- Onion Type: Short-Intermediate Day
- Days to Maturity: 100
- Days to Germination: 4-10
- Seeding Depth: 1/2"
- Plant Spacing: 4-6"
- Row Spacing: 18-24"
- Plant Height: 12-18"
- Growth Habit: Bulbous-rooted upright
- Soil Preference: Sandy, loose, composted, well-drained
- Temperature Preference: 55-75 °F
- Light Preference: Full sun
- Pests and Diseases: Thrips, onion maggots. Susceptible to onion yellows virus which may stunt and infect nearby onions.
- Early White Grano PRR Color: Alpine white root bulb and dark greens
- Early White Grano PRR Flavor: Sweet and mild compared to more aggressive yellow onions
How to Grow Early White Grano PRR Onion from Seed
Onion seeds are a cool hardy vegetable that can be sown directly 6-8 weeks prior to final spring frost or about 4-6 weeks before the first autumn frost. Seeds may also be begun indoors for early starts. Soil should be well-tilled, nitrogen-rich, with a pH of 6.0-7.0. For outdoor sowing, create a shallow 1” deep trench for a minimum of 12”.
Onion seed is very small, so sprinkle generously into the trench and lightly cover with about 1/4” of soil. As seedlings begin to sprout from the row, trim back to favor the strongest starts every 4-6” apart. “Long-day” onions grow best in the northern half of the country while “short-day” thrives in the southern half.
If you have a long enough growing season, onion seeds can be directly sown in the ground. However, the get a jump start, you can also start them indoors 8 to 10 weeks before your last frost date. The early greens on indoor onion seedlings can be trimmed and eaten or left alone to help the bulb grow. If you'll have indoor seedlings for several weeks, trimming the greens can help prevent tangling and help produce stronger plants.
TIP: Remember, organic onions are shallow rooted and benefit from ample amounts of water to form proper bulbs. About an inch a week.
Early White Grano PRR Onion in the Vegetable Garden
Onion is a cold hardy favorite able to be sown in either spring or fall for an effortless biannual harvest. Onions are often started in the garden from store-bought bulbs, but growing from seed allows for a greater variety of selection among the red, yellow, white, and sweet cultivars.
Early White Grano forms large globe shaped vidalia-type onions. Early White Grano is a short day variety, but works well as an indeterminate day variety of onion as well. When planting, look to see if a “long-day” or a “short-day” onion variety is best suited for the summers in your region. Try an onion crop in the garden bed alongside similar garlic, shallots, or leeks.
Harvesting Early White Grano PRR Onion
Most onions sown in the spring are ready for harvest about 90 days from sowing and seeds planted in the fall can mature as early as May or June the following year. Onions are ready to harvest once the plants’ greens have dried out, yellowed, and begun to bow over. Loosen the soil from the bulb to check for consistent coloring while allowing the bulb to further dry. Sweet onions do not store as well as more pungent yellow and brown varieties.
About Early White Grano PRR Onion Seeds
Allium cepa. (100 days) AKA: Texas Early Grano 502 PRR
Released by the Texas Agricultural Experimental Station in 1944.
1933 began the Texas onion breeding program which was to produce the Mother "Grano 502" which was in the parentage of all SuperSweet onions such as Granex (Vidalia, Maui Maui and NoonDay) and the Texas 1015Y.
Tolerance to pink root rot. That is what the "PRR" stands for. This is an improvement over "Texas Early Grano 502".
Fine eating quality, nicely uniform with a white flesh. Nice flavor that is not too pungent.
Early Grano onions are a great choice for soups, stews, and chilis thanks to their sweet, mild flavor. The sweet flavor also makes Early White Grano an excellent onion for caramelization. A favorite for making French onion soup and casseroles.
The Valencia Grano 9452 onion was brought to the U.S. from Valencia, Spain in 1925. The New Mexico Agricultural Experiment Station grew from this original seed and gave the selected strains the name Early Grano in 1931.
Early White Grano PRR Onion Seeds Per Package:
- 1 g - Packet - Approx 250 Seeds
- 1 oz- Wholesale - Approx 7,000 Seeds
- 4 oz - Wholesale - Approx 28,000 Seeds
- 1 lb - Wholesale - Approx 112,000 Seeds
- 5 lb - Bulk - Approx 560,000 Seeds
- 25 lb - Bulk - Approx 2,800,000 Seeds
Non-GMO Early White Grano PRR onion seeds are available for Fast Free Shipping on orders over $45.