sweet spanish yellow utah jumbo onion

Asked January 8, 2013, 2:17 PM EST

Are these onions long day or intermediate day length? Can't find anything specific to this variety, so thought I would ask. Thanks for your help.

Lori Salars

Douglas County Oregon fruits and vegetables onions horticulture

1 Response

A good article on day length.

http://extension.oregonstate.edu/gardening/onion-bulb-formation-strongly-linked-day-length

Sweet spanish utah jumbo onion - are long day, takes 128 days from seed to harvest.

Short - 12 hours
Intermediate - 13-15 hours
Long - 14-16 hours