PERENNIALS | SEED PROPAGATION
Iberis sempervirens Candy Tuft WHISTLER ™
GERMINATION TEMPERATURE
PRODUCT FORM
HARDINESS USDA ZONE
BLOOMING SEASON
RECOMMENDED TRAY SIZE
SEEDS PER PLUG
SEED COVER
ADT
MEDIA PH / EC
STAGE 1 & 2
STAGE 3 & 4
Raw
3–9
Early Spring
288-cell tray
3–4
Yes
60–65 °F (15–18 °C)
60–65 °F (15–18 °C)
63 °F (17 °C)
pH: 5.5–5.9 SME 0.5–0.75 mS/cm
Lavandula angustifolia English Lavender SCENT ™
GERMINATION TEMPERATURE
PRODUCT FORM
HARDINESS USDA ZONE
BLOOMING SEASON
RECOMMENDED TRAY SIZE
SEEDS PER PLUG
SEED COVER
ADT
MEDIA PH / EC
STAGE 1 & 2
STAGE 3 & 4
Primed
5–9
Spring–Summer 288-cell tray
2–3
Yes
65–72 °F (18–22 °C)
65–72 °F (18–22 °C)
65 °F (18 °C)
pH: 5.8–6.2 SME 0.5–0.75 mS/cm
Lavandula stoechas Spanish Lavender CASTILLIANO 2.0 ™
GERMINATION TEMPERATURE
PRODUCT FORM
HARDINESS USDA ZONE
BLOOMING SEASON
RECOMMENDED TRAY SIZE
SEEDS PER PLUG
SEED COVER
ADT
MEDIA PH / EC
STAGE 1 & 2
STAGE 3 & 4
Raw
7–9
Spring–Summer 288-cell tray
2–3
No Cover
See ADT
See ADT
68° F (20 °C)
pH: 5.5–5.9 SME 0.5–0.75 mS/cm
Lavandula stoechas Spanish Lavender VIOLETA ™ XL
GERMINATION TEMPERATURE
PRODUCT FORM
HARDINESS USDA ZONE
BLOOMING SEASON
RECOMMENDED TRAY SIZE
SEEDS PER PLUG
SEED COVER
ADT
MEDIA PH / EC
STAGE 1 & 2
STAGE 3 & 4
Raw
7–9
Early Spring–Fall 288-cell tray
2–3
Yes
65–72 °F (18–22 °C)
65–72 °F (18–22 °C)
65 °F (18 °C)
pH: 5.8–6.2 SME 0.5–0.75 mS/cm
Papaver nudicaule Iceland Poppy SPRING FEVER ®
GERMINATION TEMPERATURE
PRODUCT FORM
HARDINESS USDA ZONE
BLOOMING SEASON
RECOMMENDED TRAY SIZE
SEEDS PER PLUG
SEED COVER
ADT
MEDIA PH / EC
STAGE 1 & 2
STAGE 3 & 4
Raw
3–7
Early Spring–Spring
288-cell tray
3
No Cover
66–72 °F (19–22 °C)
66–72 °F (19–22 °C)
62 °F (17 °C)
pH: 5.5–5.9 SME 0.5–0.75 mS/cm
Platycodon grandiflorus Balloon Flower TWINKLE ™
GERMINATION TEMPERATURE
PRODUCT FORM
HARDINESS USDA ZONE
BLOOMING SEASON
RECOMMENDED TRAY SIZE
SEEDS PER PLUG
SEED COVER
ADT
MEDIA PH / EC
STAGE 1 & 2
STAGE 3 & 4
Raw
3–8
Spring–Summer 288-cell tray
3–4
No Cover
See ADT
See ADT
62 °F (17 °C)
pH: 5.5–5.9 SME 0.5–0.75 mS/cm
Pritzelago alpina Chamois Cress ICECUBE ™
GERMINATION TEMPERATURE
PRODUCT FORM
HARDINESS USDA ZONE
BLOOMING SEASON
RECOMMENDED TRAY SIZE
SEEDS PER PLUG
SEED COVER
ADT
MEDIA PH / EC
STAGE 1 & 2
STAGE 3 & 4
Raw
3–9
Early Spring–Spring
288-cell tray
3–4
Yes
See ADT
See ADT
63 °F (17.5 °C)
pH: 5.8–6.2 SME 0.5–0.75 mS/cm
Salvia x superba Salvia MERLEAU ®
GERMINATION TEMPERATURE
PRODUCT FORM
HARDINESS USDA ZONE
BLOOMING SEASON
RECOMMENDED TRAY SIZE
SEEDS PER PLUG
SEED COVER
ADT
MEDIA PH / EC
STAGE 1 & 2
STAGE 3 & 4
Raw
4–9
Spring–Summer 288-cell tray
2–3
No Cover
62–68 °F (16–20 °C)
64–68 °F (18–20 °C)
68 °F (20 °C)
pH: 5.8–6.2 SME 0.5–0.75 mS/cm
98
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