Onion, Newburg (Organic)

Allium cepa. Yellow Storage. 110 days. Long Day.

Simply the best open pollinated yellow storage onion. Originally selected from a European commercial hybrid storage onion, it was reselected under and for organic production. The tightly wrapped, copper-skinned, spherical bulbs are known for their excellent storage life, crisp texture, and medium hot rich flavor. Newburg has out-yielded hybrids when trialed under organic conditions, making it a great replacement for the classic hybrid, Copra. Despite the similar name, it is not named after the town of Newberg, Oregon. A dehybridized gem brought to us by Dr. Alan Kapuler in Corvallis, Oregon.

Seed produced by Avoca in Corvallis, Oregon.


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SKU: ONIO-NEWBUR Category: Tags: ,
Geographical Origin


For bulb onions, sow indoors in flats with good potting soil February through March. Transplant into the garden in April or May, when plants are at least the size of a No. 2 pencil lead. Space 6” in rows that are 1’ apart. Onions benefit from frequent watering and shallow cultivation. Stop irrigating in August. Harvest when stem has shriveled and tipped over.

Seed Saving

To save seed, replant at least 20 onions (to avoid inbreeding) in the second spring. Large, beautiful globe shaped flowers attract pollinators. Cut whole seed heads when they open and show the black seeds. Thresh gently and winnow to remove debris and hollow seeds.  Isolate from other Alliums of the same species by at least ½ mile.

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  1. 3 out of 3 people found this helpful
    Regina Greene

    Growing in Zone 7B (Intermediate)

    Regina Greene (verified owner)

    Where did you grow this variety? Southeastern US

    I followed the growing technique of the Old Alabama Gardener’s YouTube channel regarding growing long day slicing onions for our growing zone. I had great success using his instructions. I do recommend curing inside if humidity is an issue in your area. A flavorful and great tasting onion.

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