PERENNIALS | SEED PROPAGATION
CULTURE YOUNG PLANT
VERNALIZATION
PLUG GROW TIME
COMMENTS
REQUIREMENT
CULTURE REQUIREMENT
PLUG TIMING
6–7 weeks
If necessary, spray with B-Nine ® WSG (daminozide) at 2,500 ppm; Keep media pH <6.0 to prevent iron deficiency symptoms.
First Year Flowering
CULTURE YOUNG PLANT
VERNALIZATION
PLUG GROW TIME
COMMENTS
REQUIREMENT
CULTURE REQUIREMENT
PLUG TIMING
5–6 weeks
If needed, spray B-Nine ® WSG at 1,500–3,750 ppm; Grow plugs under short day conditions to allow plants to bulk up prior to flowering.
First Year Flowering
CULTURE YOUNG PLANT
VERNALIZATION
PLUG GROW TIME
COMMENTS
REQUIREMENT
CULTURE REQUIREMENT
PLUG TIMING
7–8 weeks
Keep trays covered with light fabric (Reemay ® ) for approximately two weeks after sowing for improved germination and uniformity.
Cold Required
Closely monitor moisture levels and do not allow plants to wilt, with temperatures at 40–50° F (5–10° C).
7–8 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
5–6 weeks
First Year Flowering
CULTURE YOUNG PLANT
VERNALIZATION
PLUG GROW TIME
COMMENTS
REQUIREMENT
CULTURE REQUIREMENT
PLUG TIMING
9–10 weeks
Keep evenly moist and don’t allow to dry out completely. Although germination is about 65–70%, it is best seeded with 2 seeds per plug to maintain even developing plants. Too many seeds per plug results in uneven finished pots.
Cold Required
Temperatures of 35–45 °F (2–7 °C)
9–12 weeks; if vernalizing plugs be sure to increase plug size for moisture management.
GROWER SUCCESS GUIDE 2024–2025
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