SEED PROPAGATION
Penstemon ARABESQUE ® / PARTYBELLS ™ F1 Penstemon hartwegii REC TRAY FORMS PLUG TIME
SEEDS/CELL SEED COVER GERM TIME
SOIL TEMP
GERM LIGHT
MEDIA pH/EC
288-cell tray
Raw
5–6 weeks
1
Yes
7 days
68–73 °F (20–23 °C)
Not required for germination pH: 5.8–6.2
SME 0.5–0.75 mS/cm
Comments: Warm day temperatures can promote soft growth and excessive stem elongation.
Pentas BEEBRIGHT ™ / BEEHIVE ™ / HONEYCLUSTER ™ F1 Pentas lanceolata REC TRAY FORMS PLUG TIME SEEDS/CELL SEED COVER GERM TIME
SOIL TEMP
GERM LIGHT
MEDIA pH/EC
288-cell tray
Pelleted
7–8 weeks
1
No
7–10 days
73–76 °F (23–24 °C)
Not required for germination pH: 6.1–6.5
SME 0.9–1.3 mS/cm
Comments: Provide supplemental lighting when DLI is less than 12 mols/day. Monitor pH levels and maintain above 6.1, or growth can stall.
Petunia grandiflora DUVET ™ / PRISM ™ F1 Petunia grandiflora REC TRAY FORMS PLUG TIME
SEEDS/CELL SEED COVER GERM TIME
SOIL TEMP
GERM LIGHT
MEDIA pH/EC
288-cell tray
Pelleted
4–5 weeks
1
No
3–5 days
72–76 °F (22–24 °C)
Required for germination
pH: 5.5–5.9 SME 0.9–1.3 mS/cm
Comments: Covering seed is not necessary, but a light vermiculite coating will help maintain moisture levels in drier climates. Keep pelleted seed at moisture level 5 the first several days to ensure the pellet is completely dissolved. Providing long days in the plug stage will reduce overall time to flower. Low boron levels can induce tip abortion. Spraying an uneven plug tray with B-Nine ® WSG at 1,500 ppm may help even the growth in the tray.
Petunia grandiflora FROST ™ / TRITUNIA ™ F1 Petunia grandiflora REC TRAY FORMS PLUG TIME
SEEDS/CELL SEED COVER GERM TIME
SOIL TEMP
GERM LIGHT
MEDIA pH/EC
288-cell tray
Raw, Pelleted
4–5 weeks
1
No
3–5 days
72–76 °F (22–24 °C)
Required for germination
pH: 5.5–5.9 SME 0.9–1.3 mS/cm
Comments: Covering seed is not necessary, but a light vermiculite coating will help maintain moisture levels in drier climates. Keep pelleted seed at moisture level 5 the first several days to ensure the pellet is completely dissolved. Providing long days in the plug stage will reduce overall time to flower. Low boron levels can induce tip abortion. Spraying an uneven plug tray with B-Nine ® WSG at 1,500 ppm may help even the growth in the tray.
Petunia milliflora PICOBELLA ™ F1 Petunia milliflora REC TRAY FORMS PLUG TIME
SEEDS/CELL SEED COVER GERM TIME
SOIL TEMP
GERM LIGHT
MEDIA pH/EC
288-cell tray pH: 5.5–5.9 SME 0.9–1.3 mS/cm Comments: Covering seed is not necessary, but a light vermiculite coating will help maintain moisture levels in drier climates. Keep pelleted seed at moisture level 5 the first several days to ensure the pellet is completely dissolved. Providing long days in the plug stage will reduce overall time to flower. Low boron levels can induce tip abortion. Pelleted 4–5 weeks 1 No 3–5 days 72–76 °F (22–24 °C) Required for germination
Petunia multiflora DAMASK ™ / HURRAH ™ F1 Petunia multiflora REC TRAY FORMS PLUG TIME
SEEDS/CELL SEED COVER GERM TIME
SOIL TEMP
GERM LIGHT
MEDIA pH/EC
288-cell tray
Pelleted
4–5 weeks
1
No
3–5 days
72–76 °F (22–24 °C)
Required for germination
pH: 5.5–5.9 SME 0.9–1.3 mS/cm
Comments: Covering seed is not necessary, but a light vermiculite coating will help maintain moisture levels in drier climates. Keep pelleted seed at moisture level 5 the first several days to ensure the pellet is completely dissolved. Providing long days in the plug stage will reduce overall time to flower. Low boron levels can induce tip abortion. Spraying an uneven plug tray with B-Nine ® WSG at 1,500 ppm may help even the growth in the tray.
Petunia spreading FOTOFINISH ® F1 Petunia pendula REC TRAY FORMS PLUG TIME
SEEDS/CELL SEED COVER GERM TIME
SOIL TEMP
GERM LIGHT
MEDIA pH/EC
288-cell tray
Pelleted
4–5 weeks
1
No
3–5 days
72–76 °F (22–24 °C)
Required for germination
pH: 5.5–5.9 SME 0.9–1.3 mS/cm
Comments: Covering seed is not necessary, but a light vermiculite coating will help maintain moisture levels in drier climates. Keep pelleted seed at moisture level 5 the first several days to ensure the pellet is completely dissolved. Providing long days in the plug stage will reduce overall time to flower. Low boron levels can induce tip abortion. Spraying an uneven plug tray with B-Nine ® WSG at 1,500 ppm may help even the growth in the tray.
Petunia spreading grandiflora SKYBOX ™ F1 Petunia pendula REC TRAY FORMS PLUG TIME
SEEDS/CELL SEED COVER GERM TIME
SOIL TEMP
GERM LIGHT
MEDIA pH/EC
288-cell tray pH: 5.5–5.9 SME 0.9–1.3 mS/cm Comments: Covering seed is not necessary, but a light vermiculite coating will help maintain moisture levels in drier climates. Keep pelleted seed at moisture level 5 the first several days to ensure the pellet is completely dissolved. Providing long days in the plug stage will reduce overall time to flower. Low boron levels can induce tip abortion. Pelleted 4–5 weeks 1 No 3–5 days 72–76 °F (22–24 °C) Required for germination
GROWER SUCCESS GUIDE 2023-2024 | ANNUALS
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