Cortland Onion (Organic F1 Hybrid 105 Days)
Uniform globe-shaped bulbs have thick copper-colored skin and slender necks for easy drying and long storage. The Cortland Onion was developed by the breeders of some of the best storage onions available. High resistance to Fusarium basal rot and pink root.
Please note that germination rates for alliums (onions/shallots/chives/leeks) decline rapidly. We strongly encourage you to purchase new seed each growing season.
Germination: 5-10 days
Germination Temperature: Optimum soil temperatures 60-75ºF.
Seed Sowing Depth: 1/4" deep
Sowing Indoors: Start 8-10 weeks before the last frost with soil temperatures 60-75ºF. Sow in flats 1/4” deep, 1/4” apart. Transplant seedlings out mid/late spring, 2-6” apart. Liquid fertilize seedlings every 7-10 days. Seedlings size should be about a pencil-thick at transplanting time.
Sowing Outdoors- Early to mid-spring when the soil temperature reaches at least 55 ºF. Sow 1-3 seeds per inch, thin to 2-6” apart. The larger the bulb size the more space.
How much does a packet plant: 15-30 foot single row
Harvest- Stop watering a week before harvesting. Pull out when necks soften and start to fall over. Cure them in the sun for a few days then finish drying them out of direct sunlight, in a warm area, and in a single layer so air can circulate around them until the neck is dry. Store in a cool dark place with 35-40ºF temperatures and 65-70% humidity.
Tips- The Cortland Onion needs fertile, well-drained soil. Amend with compost or apply organic granular fertilizer. Adequate water is very important for optimum growth, 1" per week.