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SUS Farms · Utah Seed Library

Growing Hellebore (Lenten Rose) in Utah

flower · Ranunculaceae · cool season · 365 days to harvest

Methodtransplant
Days to maturity365 days
Seed depth0.25″
Plant spacing18″
Row spacing24″
Germ. temp55–70°F

Schedule (May 15 last frost · Sevier County)

Start indoors—
Transplant out4/3
First harvest4/2

Planting depth, drawn to scale

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

Step-by-step

  1. 1. Start indoors 0 weeks before last frost. Seed-starting mix in 2-4" cells. Bottom heat at 55–70°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 18″ apart in rows 24″ apart. Soil should be at least 55°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 365. Blooms when nothing else does — Feb through April. Evergreen. Deer ignore them. Slow to establish, lives 30+ years.