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SUS Farms · Utah Seed Library

Growing Eggplant in Utah

vegetable · Solanaceae · warm season · 75 days to harvest

Methodtransplant
Days to maturity75 days
Seed depth0.25″
Plant spacing24″
Row spacing30″
Germ. temp75–90°F

Schedule (May 15 last frost · Sevier County)

Start indoors3/20
Transplant out5/29
First harvest8/14

Planting depth, drawn to scale

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

Step-by-step

  1. 1. Start indoors 8 weeks before last frost. Seed-starting mix in 2-4" cells. Bottom heat at 75–90°F until germination, then drop to room temperature. 14-16 hours of light from clip-lamp 2" from leaves.
  2. 2. Harden off for 7 days. Day 1: 1 hour outside in shade. Add an hour and more sun each day. Skip if windy or below 50°F.
  3. 3. Transplant 24″ apart in rows 30″ apart. Soil should be at least 75°F before planting. Black plastic mulch laid two weeks ahead helps in cool springs.
  4. 4. Mulch and water consistently. 2" of straw or wood chip around the base. Drip line at surface. 1" per week including rain.
  5. 5. Harvest around day 75. Heat lover — black plastic mulch helps in our short Utah summers.