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SUS Farms · Utah Seed Library

Growing Spinach in Utah

vegetable · Amaranthaceae · cool season · 40 days to harvest

Methoddirect
Days to maturity40 days
Seed depth0.5″
Plant spacing4″
Row spacing12″
Germ. temp35–70°F

Schedule (May 15 last frost · Sevier County)

Direct sow4/3
First harvest5/15

Planting depth, drawn to scale

0"1"2"3"4"5"6"0.5" deep

Step-by-step

  1. 1. Direct sow 0.5″ deep, 4″ apart. Soil should be at least 35°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 40. Fall is the better crop in Utah — sow Aug 15 for harvest into November under a cold frame.