2024 Grower Success Guide | Americas

PERENNIALS | SEED FINISHING

Lavandula stoechas Spanish Lavender VIOLETA ™ XL VERNALIZATION

DAY TEMP

NIGHT TEMP

MEDIA PH / EC

DAY LENGTH

REQUIREMENT CULTURE REQUIREMENT BULK CROP TIMING CROP TIMING First Year Flowering

pH: 5.8–6.2 EC: SME EC: 1.5–2.0 mS/cm PourThru EC: 2.3–3.2 mS/cm

Facultative long day 72–74 °F (22–23 °C)

62–64 °F (17–18 °C)

Tech Tips: Once plants are established, one pinch (approximately 10–14 day after transplanting) in the finish container will give the best plant fill and habit.

Papaver nudicaule Iceland Poppy SPRING FEVER ® VERNALIZATION

DAY TEMP

NIGHT TEMP

MEDIA PH / EC

DAY LENGTH

REQUIREMENT CULTURE REQUIREMENT BULK CROP TIMING CROP TIMING First Year Flowering

pH: 5.5–5.9 EC: SME EC: 1.5–2.0 mS/cm PourThru EC: 2.3–3.2 mS/cm

Day neutral

60–62 °F (16–17 °C)

58–60 °F (14–16 °C)

Platycodon grandiflora Balloon Flower TWINKLE ™ VERNALIZATION

DAY TEMP

NIGHT TEMP

MEDIA PH / EC

DAY LENGTH

REQUIREMENT CULTURE REQUIREMENT BULK CROP TIMING CROP TIMING First Year Flowering

pH: 5.5–5.9 EC: SME EC: 1.5–2.0 mS/cm PourThru EC: 2.3–3.2 mS/cm

Day neutral

64–66 °F (18–19 °C)

60–62 °F (16–17 °C)

Tech Tips: Plants can be grown under short days to bulk plants prior to flowering, but crop time will be longer.

Pritzelago alpina Chamois Cress ICECUBE ™ VERNALIZATION

DAY TEMP

NIGHT TEMP

MEDIA PH / EC

DAY LENGTH

REQUIREMENT CULTURE REQUIREMENT BULK CROP TIMING CROP TIMING Cold Required 7–8 weeks 7–8 weeks

Closely monitor moisture levels and do not allow plants to wilt, with temperatures at 40–50° F (5–10° C)

pH: 5.8–6.2 EC: SME EC: 0.9–1.3 mS/cm PourThru EC: 1.4–2.0 mS/cm

Day neutral

62–64 °F (17–18 °C)

56–58 °F (13–14 °C)

Tech Tips: Best suited for small containers.

Salvia x superba Salvia MERLEAU ®

VERNALIZATION

DAY TEMP

NIGHT TEMP

MEDIA PH / EC

DAY LENGTH

REQUIREMENT CULTURE REQUIREMENT BULK CROP TIMING CROP TIMING First Year Flowering Option to vernalize for early spring flowering

pH: 5.8–6.2 EC: SME EC: 1.5–2.1 mS/cm PourThru EC: 2.3–3.2 mS/cm

Facultative long day 70–72 °F (21–22 °C)

64–66 °F (18–19 °C)

Tech Tips: No vernalization is required but plants will flower earlier in the spring if vernalized.

Saxifraga x arendsii Saxifraga LOFTY ™

VERNALIZATION

DAY TEMP

NIGHT TEMP

MEDIA PH / EC

DAY LENGTH

REQUIREMENT CULTURE REQUIREMENT BULK CROP TIMING CROP TIMING Cold Required Temperatures of 35–45 °F (2–7 °C) 5–7 weeks 9–12 weeks

pH: 5.8–6.2 EC: SME EC: 0.9–1.3 mS/cm PourThru EC: 1.4–2.0 mS/cm

Day neutral

66–68 °F (19–20 °C)

54–56 °F (12–13 °C)

Tech Tips: Keep evenly moist and don’t allow to completely dry out for uniform and consistent flowering.

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