PERENNIALS | SEED PROPAGATION
CULTURE YOUNG PLANT
VERNALIZATION
PLUG GROW TIME
COMMENTS
REQUIREMENT
CULTURE REQUIREMENT
PLUG TIMING
9–10 weeks
Can use 3-4 seeds per cell for more flower stems; light is required for germination, do not cover after sowing; B-Nine ® WSG (daminozide) spray at 1,500–3,000 ppm.
Cold Required
Short vernalization period required for more uniform flowering; if bulking in the plug stage use a 72 cell or larger.
4–5 weeks; Temp 50–55°F (10–13°C); if vernalizing plugs be sure to increase plug size for moisture management.
CULTURE YOUNG PLANT
VERNALIZATION
PLUG GROW TIME
COMMENTS
REQUIREMENT
CULTURE REQUIREMENT
PLUG TIMING
5–6 weeks
Cold Required
CULTURE YOUNG PLANT
VERNALIZATION
PLUG GROW TIME
COMMENTS
REQUIREMENT
CULTURE REQUIREMENT
PLUG TIMING
6–7 weeks
While correct growing temperature will control growth, a B-Nine ® WSG (daminozide) spray at spray at 2,500 ppm can be used.
Cold Required
CULTURE YOUNG PLANT
VERNALIZATION
PLUG GROW TIME
COMMENTS
REQUIREMENT
CULTURE REQUIREMENT
PLUG TIMING
5–6 weeks
As plugs mature, reduce irrigation frequency to tone plants.
First Year Flowering
CULTURE YOUNG PLANT
VERNALIZATION
PLUG GROW TIME
COMMENTS
REQUIREMENT
CULTURE REQUIREMENT
PLUG TIMING
6–7 weeks
Keep fertilizer levels low during plug production because young plants are sensitive to high media salts. Target media EC should be 0.25–0.50 mS/ cm.
First Year Flowering
CULTURE YOUNG PLANT
VERNALIZATION
PLUG GROW TIME
COMMENTS
REQUIREMENT
CULTURE REQUIREMENT
PLUG TIMING
8–9 weeks
If needed, spray B-Nine ® WSG (daminozide) at 1,500–3,750 ppm; Grow plants under short day conditions (less than 12 hours) to avoid early flower initiation.
First Year Flowering
CULTURE YOUNG PLANT
VERNALIZATION
PLUG GROW TIME
COMMENTS
REQUIREMENT
CULTURE REQUIREMENT
PLUG TIMING
9–10 weeks
Grow plants under short day conditions (less than 12 hours) to avoid early flower initiation.
First Year Flowering
CULTURE YOUNG PLANT
VERNALIZATION
PLUG GROW TIME
COMMENTS
REQUIREMENT
CULTURE REQUIREMENT
PLUG TIMING
6–8 weeks
B-Nine ® WSG (daminozide) spray at 2,500 ppm, or a Bonzi ® (paclobutrazol) spray at 5 ppm can be used to tone the plugs; Grow plugs at cool temperatures once germinated for best quality.
First Year Flowering
GROWER SUCCESS GUIDE 2024–2025
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