PERENNIALS | SEED PROPAGATION
CULTURE YOUNG PLANT
VERNALIZATION
PLUG GROW TIME
COMMENTS
REQUIREMENT
CULTURE REQUIREMENT
PLUG TIMING
6–7 weeks
When growing with a 9–10 week crop schedule, it is important to provide >14 hours of supplemental lighting in plug stages. When growing with a longer, cooler production schedule, the extra day length is not needed.
Cold Beneficial
CULTURE YOUNG PLANT
VERNALIZATION
PLUG GROW TIME
COMMENTS
REQUIREMENT
CULTURE REQUIREMENT
PLUG TIMING
9–10 weeks
Transplanting the 288-cell plug into a 50-cell tray allows for the grading of the plugs for a more uniform crop and easier moisture management.
First Year Flowering
CULTURE YOUNG PLANT
VERNALIZATION
PLUG GROW TIME
COMMENTS
REQUIREMENT
CULTURE REQUIREMENT
PLUG TIMING
3–4 weeks
IMPORTANT: This light intensity requirement is much higher than most other species during young plant production. Meeting this requirement is critical for optimal plug development. A spray application of Altercel ™ at 300 ppm 10–12 days after sowing will reduce plant height by 30–50%.; If Altercel ™ is applied, seedlings may temporarily yellow. Begin feeding at 75 ppm N at radical emergence.
First Year Flowering
CULTURE YOUNG PLANT
VERNALIZATION
PLUG GROW TIME
COMMENTS
REQUIREMENT
CULTURE REQUIREMENT
PLUG TIMING
7–8 weeks
Cold Required
Temperature: 35–45 °F (2–7 °C) Tech tip: Pinch at transplant in the fall to ensure pot fill prior to vernalization period.
8–10 weeks; 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
9–10 weeks
Pinch 7–12 days before transplant; Use primed seed to improve germination uniformity and overcome any dormancy issues; Grow plugs at less than 13.5 hours.
First Year Flowering
CULTURE YOUNG PLANT
VERNALIZATION
PLUG GROW TIME
COMMENTS
REQUIREMENT
CULTURE REQUIREMENT
PLUG TIMING
9–10 weeks
If needed, spray B-Nine ® WSG at 1,500–2,500 ppm; Use care when applying vermiculite covering to trays, as covering too heavily will suppress germination. Pinch plants 10 days prior to transplant if growing in a larger tray size or using less seeds per cell to increase branching on plugs.
First Year Flowering
CULTURE YOUNG PLANT
VERNALIZATION
PLUG GROW TIME
COMMENTS
REQUIREMENT
CULTURE REQUIREMENT
PLUG TIMING
9–10 weeks
Grow plugs at less than 13.5 hours of day length to avoid early flower initiation.
First Year Flowering
GROWER SUCCESS GUIDE 2024–2025
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