Riverside Onion

Riverside (Allium cepa) is an open pollinated short / intermediate day onion (note: for growing between latitudes between 25° and 42°; i.e. Southern US).This yellow skinned onionis on the sweeter side, but there is a hit of spiciness in there as well. Bulbs can reach over two pounds and have good storage potential due to their thick outer layer. 

Seeds are certified organic.

Size: Packet: 100 seeds (0.38 gram), OG

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Riverside (Allium cepa) is an open pollinated short / intermediate day onion (note: for growing between latitudes between 25° and 42°; i.e. Southern US).This yellow skinned onion is on the sweeter side, but there is a hit of spiciness in there as well. Bulbs can reach over two pounds and have good storage potential due to their thick outer layer. 

THIRD generation seed produced by us in Ojai, California: emphasis with this selection was resistance to early bolting and disease such as purple blotch.

Our current crop has been disease tested for:

  • Alternaria porri,
  • Stemphylium vesicarium,
  • Onion Yellow Dwarf Virus,
  • Potvvirus Group 

and is free from these pathogens!

Seeds are certified organic.

Onions are biennials. Riverside will produce bulbs 115 days when fall seeded under ideal conditions; 90-100 when spring sown.

Read about Quin's work with improving this heirloom in 2018-2019, which includes some history of Riverside. Also see our video produced for the 2022 Culinary Breeding Network Variety showcase and discussion about the crop breeding

Common Name:
Riverside Onion
Scientific Name:
Allium cepa
Description:
A short-intermediate day yellow heirloom onion. Medium spicy. Bulbs store 4-6 months.
Plant Lifespan:
Biennial
Cold Hardiness:
Zone 9b
Light Requirements:
Full Sun (min. 6 hours a day)
Seed In:
Spring, Fall
Seeding Depth:
1/4 in.
Days to Sprout:
5-10
Optimal Soil Temperature (F):
70-75
Plant Spacing:
12-18 in.
Average Days from Seed to Harvest:
75-115

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