facebook

Yellow Sweet Spanish Utah Bulb Onion Seeds

Heirloom

#0291
This packet sows up to 30 feet.
4.6 out of 5 stars
(5 reviews)
Availability: Out of Stock
The 'Sweet Spanish' onion was grown in the U.S. at least as far back as 1916. 'Yellow Sweet Spanish Utah' is from that early type, producing large, 3"–6" globe-shaped bulbs with amazingly mild, sweet flavor. A long-day variety, it grows best in states north of the 37th parallel. Utah designated this onion the state vegetable in 2002. Caramelize onions for the perfect patty melt condiment.
$2.49 750 mg (~180 seeds)

Botanical Name: Allium cepa

Days to Maturity: 110–130 days

Family: Alliaceae

Native: Exists only in cultivation

Hardiness: Biennial grown as an annual

Variety Information: Large, 3 ½"–6", up to 2 lbs., pale yellow, globe-shaped bulbs with coppery wrapper; 12"–18" tops. 'Yellow Sweet Spanish Utah' is a bulbing, yellow, long-day onion with a moderate storage period.

Type: Long-day onion (Learn more)

Attributes: Storage

When to Sow Outside: 4 to 6 weeks before your average last frost date, or as soon as soil can be worked; when soil temperature is at least 45°F.

When to Start Inside: RECOMMENDED. 10 to 12 weeks before your average last frost date. Transplant outdoors 4 to 6 weeks before your average last frost date. The earlier the start, the bigger the bulb. Ideal soil temperature is 60°–85°F.

Days to Emerge: 7–15 days

Seed Depth: ¼"

Seed Spacing: A group of 2 seeds every 6"–8"

Row Spacing: 12"–16"

Thinning: When 2" tall, thin to 1 every 6"–8"

Harvesting: When onion tops have fallen over and turned yellow or brown, they are ready for harvest. Harvest in the morning, lifting onions with a garden fork. Dry them in the garden in the sun for 2 to 3 days, lightly covering the bulbs with straw, or the tops of other onions to prevent sunscald. Cure onions for 3 to 7 days in a dry area with good air circulation. Once dry, cut the roots to 1/4", and the greens to 1" to create a seal, preventing decay.

Write a Review

Yellow Sweet Spanish Utah Bulb Onion Seeds Reviews

5 reviews

Nice Big Flavorful Onions

5 out of 5 stars Aug 15, 2020
I grew these in our regular garden bed & in our Hugelkulture raised bed. They grew well in both, but were a little larger in the Hugelkulture bed. Wonderful onions. Nice colored skins for braiding. Will use again.
Doreen from OH

Worked well for my first try from seeds

4 out of 5 stars Sep 21, 2021
Grew this in 10a SF bay area. Started in Feb, were mature in Aug. I seeded into cups and let the ones that came up grow for a few months before transplanting to a bed. They did not all get enough sun, so my recommendation is to place them in a particularly sunny location. Also, Onions want water and want it every day, so don't skimp. They take a long time but not all that much space. Seeds are small and maturity takes time, so these are a plan-ahead sort of crop. Very happy with what I got from this packet. Recommended.
Dave from CA

Wonderful

5 out of 5 stars Nov 28, 2021
Beautiful and tasty. Easy to grow.
Dana from WI

Seeds are strong

4 out of 5 stars Mar 13, 2022
I planted these onion seeds and 4 other vege on March 10th. Today is March 13th. Saw my first onion sprouting yesterday. Checked again today - more sprouts poking up from the onions. I'm very pleased and hope the growth continues for all of my seeds. Reserving a 5- star rating for farther into the growing/harvesting season.
Kim from PA

Precious seeds

5 out of 5 stars May 4, 2022
Every time I receive a packet of seeds from Botanical Garden, I feel the care and love, in all the details. I enjoy the description of the plants, the helpful tips inside the packet, and the efficient service. The seeds sprout very timely and healthy. Very satisfied.
Regina from TN