Red Spring
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Red long-day onion for overwintering.
Robust, dark green plants survive winter well and produce red bulbs with deeper color than Desert Sunrise. Bulbs are round and uniform in size, maturing a few days behind Desert Sunrise when overwintered. In our trials, Red Spring is slightly more prone to bolting than Desert Sunrise when overwintered in Maine. Also a good option for a spring-sown, early red onion in long-day latitudes. Stores approx. 3 months.
Specs:
- Packet: 250 seeds
- Avg. 121,700 seeds/lb
Read More
| Size | Packet, 1,000 Seeds, 5,000 Seeds, 25,000 Seeds, 100,000 Seeds |
|---|---|
| HARVEST | When necks become soft and 50% of tops are falling over, pull and cure in well-ventilated space out of direct sunlight (to prevent greening) or sun-cure in field for 2–7 dry days before moving to dry location. Cure until tops are completely dried; about 2 weeks. |
| SEED SPECS | SEEDS/LB.: 96,900–127,700 (avg. 112,000). |
| SIZED SEEDS | Standard on all varieties. |
| TRANSPLANTS | Avg. 1 oz./4,900 plants, 1 lb./78,750. |
| AVG. DIRECT SEEDING RATE | 1 oz./25', 1M/50', 5M/250', 25M/1,250', 580M/acre at 20 seeds/ft., in rows 18" apart. |
| DAYS TO MATURITY | From direct seeding; subtract 10–15 days for days to maturity from transplant. |
| STORAGE | When dry, clip off tops and roots and store in onion bags or shallow boxes at near freezing and 65–70% humidity. |
| DISEASES | Adequate air circulation and crop rotation aids in reducing the risk of foliar disease. |
| SCIENTIFIC NAME | Allium cepa |
| WATER | Onions are shallow-rooted and grow best with at least 1" per week of rain or irrigation, especially during the bulbing phase. |
| CULTIVATION | Keep onions well weeded with shallow cultivation. |
| TRANSPLANTING | In long- and intermediate-day areas, sow indoors 6–8 weeks before last frost date. Sow 128-cell trays, 1 seed/cell, and cover with 1/4" soil. Transplant 4" apart in rows 12–18" apart. Unruly tops may be clipped to 5" at time of transplant. |
| DIRECT SEEDING | In April or early May, or as soon as the soil can be prepared in early spring, sow in a 2" wide band, about 2 seeds/in., 1/4– 1/2" deep, rows 12–18" apart. Thin to 1 1/2–2" apart for highest yields in fertile soil. Thin to 3-4" apart for larger onions. |
| DAY LENGTH | Onion bulbing is triggered by day length, and maximum day length during the growing season increases from south to north. Short-day onions are grown at lower latitudes in the South, while intermediate and long-day onions are grown at higher latitudes. Refer to "Adaptation" in each variety description for details. |
| CULTURE | Onions require full sun and fertile, well-drained soil with a pH of 6.0–7.0. Sandy loam soils are ideal; in heavier soils, use raised beds or raised rows to promote soil drainage. |
| PACKET | 250 seeds, sows 12' or makes 140 plants. |
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