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SUS Farms · Utah Seed Library

Growing Bunching Onion (Scallion) in Utah

vegetable · Amaryllidaceae · cool season · 60 days to harvest

Methoddirect
Days to maturity60 days
Seed depth0.25″
Plant spacing1″
Row spacing6″
Germ. temp50–85°F

Schedule (May 15 last frost · Sevier County)

Direct sow4/24
First harvest6/26

Planting depth, drawn to scale

0"1"2"3"4"5"6"0.25" deep

Step-by-step

  1. 1. Direct sow 0.25″ deep, 1″ apart. Soil should be at least 50°F before planting. Black plastic mulch laid two weeks ahead helps in cool springs.
  2. 2. Mulch and water consistently. 2" of straw or wood chip around the base. Drip line at surface. 1" per week including rain.
  3. 3. Harvest around day 60. Evergreen and Tokyo Long White produce all season. Cut tops to 2"; they regrow.