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SUS Farms · Utah Seed Library

Growing Nasturtium in Utah

flower · Tropaeolaceae · cool season · 50 days to harvest

Methoddirect
Days to maturity50 days
Seed depth0.5″
Plant spacing10″
Row spacing12″
Germ. temp55–75°F

Schedule (May 15 last frost · Sevier County)

Direct sow5/15
First harvest7/3

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, 10″ apart. Soil should be at least 55°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 50. Edible flowers and leaves — peppery like watercress. Trap crop for aphids — keeps them off vegetables.