90 Days to maturity. Allium cepa. Red Cipollini Onion Seeds. Non-GMO, annual, open-pollinated, heirloom, bulbing, long-day onion. Suitable for growing in greenhouses, garden plots, and raised beds. Red Cipollini is bright red, flattened, and can be used for fresh eating, boiling, or braising. Red Cipollini is about 3-4 inches across and about 1-1 .5 inches in depth. Approx. 8,400 Seeds per ounce. Download Free Vegetable Growing Guide PDF Latin Name: Allium cepa Hardiness Zone: 2, 3, 4, 5, 6, 7, 8, 9 Technically a tender perennial, but almost always grown as an annual, unless specifically grown for seed. Days to Maturity: 90 Days to Germination: 7-10 Seeding Depth: 0.25 inch Direct Sow: Yes Start Indoors: Yes Start Indoors 8-10 weeks before last frost date. Onion Day Length: Long Day - Long Day Onions need 14 to 15 hours of daylight to form a bulb. If you plan to grow in more Northern US states with hard winters, Long Day Onions are your best choice. Typically planted in spring for mid to late summer harvest. This variety may also be grown in intermediate-day regions. Plant Spacing: 3-6 inches Row Spacing: 12-15 inches Plant Height: 18-30 inches Plant Width: Growth Habit: Bulbing - Bulbing onions are growing for the bulb or globe they produce. Growth Speed: Mid - Ready for harvest around 70 to 100 days from direct sowing to harvesting. Soil Preference: Rich and well-draining Temperature Preference: Cooler Germination Temperature: 66-70 F Light Preference: Full Sun Pests and Diseases: Red Cipollini Onion Color: Red Red Cipollini Onion Flavor: Pungent semi-sweet, sweeten with cooking Garden Size: Greenhouse, Garden Plot, and Raised Beds Onion Use: Fresh, Boil, Braise, Roast, Pickling Onion Seeds - Red Cipollini Stores well. In fact it can be seen in Italy braided (like garlic) and hanging in kitchens. Seedlings can be fall planted in Northern California and should over winter well. In our opinion, Red Cipollini onions produce a sweeter onion when over-wintered. Seeds Per Package: 1 g - Approximately 300 Seeds 1 oz - Approximately 8,400 Seeds 4 oz - Approximately 33,600 Seeds 1 lb - Approximately 134,400 Seeds