Walla Walla Onion Seeds (105 Days)

LONG DAY
This near legendary onion is noted for its mildness. In the NW, it’s planted in fall, over-wintered, and harvested in spring. The Walla Walla Onion Seeds produce an acceptably mild crop from a spring planting in areas with more severe winters. Try to protect it over the winter with light mulch. We’ve had mixed results with this method. Worth experimenting if you crave a mild onion. 

150 seeds  

Please note that germination rates for alliums (onions/shallots/chives/leeks) decline rapidly. We strongly encourage you to purchase new seed each growing season.

PLANTING

Allium cepa

Germination: 5-10 days

Germination Temperature: Optimum soil temperatures 60-75ºF. 

Seed Sowing Depth: 1/4" deep

Sowing Indoors: Start 8-10 weeks before 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 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 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 Walla Walla Onion Seeds Need fertile, well drained soil. Amend with compost or apply organic granular fertilizer. Adequate water is very important for optimum growth, 1" per week.