PERENNIALS | SEED FINISHING
Aquilegia caerulea Columbine KIRIGAMI ™
VERNALIZATION (PRE- OR POST-TRANSPLANT)
DAY TEMP
NIGHT TEMP
MEDIA PH / EC
DAY LENGTH
REQUIREMENT CULTURE REQUIREMENT BULK CROP TIMING TIMING Cold Required 4 weeks 4–5 weeks
Short vernalization period required for more uniform flowering; Temp 50–55°F (10–13 °C)
pH: 5.5–5.9 SME EC: 1.5–2.1 mS/cm PourThru EC: 2.3–3.2 mS/cm
Facultative long day 62–64 °F (17–18 °C)
52–54 °F (11–12 °C)
Tech Tips: PGR applications should be applied before the flower initiation to ensure that the flowers grow above the foliage.
Arenaria montana Sandwort BLIZZARD ™ COMPACT VERNALIZATION (PRE- OR POST-TRANSPLANT)
DAY TEMP
NIGHT TEMP
MEDIA PH / EC
DAY LENGTH
REQUIREMENT CULTURE REQUIREMENT BULK CROP TIMING TIMING Cold Required Temps: 35–40 °F (2–5 °C) 5–7 weeks 8–10 weeks
pH: 5.5–5.9 SME EC: 1.5–2.1 mS/cm PourThru EC: 2.3–3.2 mS/cm
Obligate long day
64–66 °F (18–19 °C)
58–60 °F (14–16 °C)
Tech Tips: Watch EC levels as roots are sensitive to high salt concentrations. Growing outdoors under cold conditions will increase crop times.
Aurinia saxatilis Alyssum SUMMIT ™
VERNALIZATION (PRE- OR POST-TRANSPLANT)
DAY TEMP
NIGHT TEMP
MEDIA PH / EC
DAY LENGTH
REQUIREMENT CULTURE REQUIREMENT BULK CROP TIMING TIMING Cold Required 5–7 weeks 5–8 weeks
Practice good moisture management during vernalization to avoid disease issues. Temperature: 40–50 °F (5–10 °C)
pH: 5.5–5.9 SME EC: 1.5–2.1 mS/cm PourThru EC: 2.3–3.2 mS/cm
Day neutral
64–66 °F (18–19 °C)
56–58 °F (13–14 °C)
Tech Tips: Spray for downy mildew preventative when growing under high humidity conditions and prolonged leaf wetness.
Bellis perennis English Daisy BAM BAM ™
VERNALIZATION (PRE- OR POST-TRANSPLANT)
DAY TEMP
NIGHT TEMP
MEDIA PH / EC
DAY LENGTH
REQUIREMENT CULTURE REQUIREMENT BULK CROP TIMING TIMING First Year Flowering
pH: 5.5–5.9 SME EC: 0.9–1.3 mS/cm PourThru EC: 1.4–2.0 mS/cm
Day neutral
62–64 °F (17–18 °C)
48–50 °F (9–10 °C)
Tech Tips: Do not overwater Bam Bam to avoid crown rot.
Bergenia cordifolia Bergenia SHOESHINE ™
VERNALIZATION (PRE- OR POST-TRANSPLANT)
DAY TEMP
NIGHT TEMP
MEDIA PH / EC
DAY LENGTH
REQUIREMENT CULTURE REQUIREMENT BULK CROP TIMING TIMING First Year Flowering Cold is beneficial - see Tech Tips
pH: 5.5–5.9 SME EC: 0.9–1.3 mS/cm PourThru EC: 1.4–2.0 mS/cm
Day neutral
64–66 °F (18–19 °C)
54–56 °F (12–13 °C)
Tech Tips: Although vernalization is not required, cool nights less than 50 °F (10 °C) will increase uniformity and quality of flowering.
Campanula carpatica Bellflower PRISTAR ™
VERNALIZATION (PRE- OR POST-TRANSPLANT)
DAY TEMP
NIGHT TEMP
MEDIA PH / EC
DAY LENGTH
REQUIREMENT CULTURE REQUIREMENT BULK CROP TIMING TIMING First Year Flowering
pH: 5.8–6.2 SME EC: 0.9–1.3 mS/cm PourThru EC: 1.4–2.0 mS/cm
Obligate long day
62–64 °F (17–18 °C)
60–62 °F (16–17 °C)
Tech Tips: After transplanting, keep plants under short day conditions for 3–4 weeks, then provide daylengths of 14 hours or more to force flowering. Natural flowering time is June through July.
Campanula portenschlagiana Bellflower CLOCKWISE ™
VERNALIZATION (PRE- OR POST-TRANSPLANT)
DAY TEMP
NIGHT TEMP
MEDIA PH / EC
DAY LENGTH
REQUIREMENT CULTURE REQUIREMENT BULK CROP TIMING TIMING First Year Flowering
pH: 6.1–6.5 SME EC: 0.9–1.3 mS/cm PourThru EC: 1.4–2.0 mS/cm
Obligate long day
66–68 °F (19–20 °C)
62–64 °F (17–18 °C)
Tech Tips: After transplanting, grow plants under short day conditions for 2–3 weeks, then transition to day lengths for 14 hours, or provide 4 hours of night interruption lighting to force flowering.
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