ANNUALS | SEED PROPAGATION
Dahlia hybrida OP Dahlia FRESCO ™ REC TRAY FORMS
PLUG TIME
SEEDS/CELL SEED COVER GERM TIME
SOIL TEMP
GERM LIGHT
MEDIA pH/EC
288-cell tray
Raw, Coated
3–4 weeks
1
Yes
5 days
70 °F (21 °C)
Not required for germination pH: 5.5–5.9
SME 0.5–0.75 mS/cm
Comments: Provide day extension lighting to 12–14 hours/day to help prevent premature flower bud set.
Dianthus × barbatus F1 Dianthus DIABUNDA ® REC TRAY FORMS PLUG TIME
SEEDS/CELL SEED COVER GERM TIME
SOIL TEMP
GERM LIGHT
MEDIA pH/EC
288-cell tray
Pelleted
5–6 weeks
1
Yes
5 days
72–74 °F (22–23 °C)
Not required for germination pH: 5.5–5.9
SME 0.9–1.3 mS/cm Comments: Providing high light and dropping the temperature to an average daily temperature (ADT) of 60 °F (15.5 °C) will reduce the need for PGRs. Day extension lighting to 14 hours will hasten flowering of the finished plant.
Dianthus chinensis F1 Dianthus SUPER PARFAIT ™ / VENTI PARFAIT ™ REC TRAY FORMS PLUG TIME
SEEDS/CELL SEED COVER GERM TIME
SOIL TEMP
GERM LIGHT
MEDIA pH/EC
288-cell tray
Raw, Pelleted
5–6 weeks
1
Yes
5 days
72–74 °F (22–23 °C)
Not required for germination pH: 5.5–5.9
SME 0.9–1.3 mS/cm Comments: Providing high light and dropping the temperature to an average daily temperature (ADT) of 60 °F (15 °C) will reduce the need for PGRs. Day extension lighting to 14 hours will hasten flowering of the finished plant.
Gazania rigens F1 Gazania BIG KISS ™ / FROSTY KISS ™ / GAZOO ™ / KISS ™ 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
4–6 days
70–75 °F (21–24 °C)
Not required for germination pH: 5.5–5.9
SME 0.5–0.75 mS/cm
Comments: Growing gazania plugs on the dry side and keeping them moderately cool will help prevent leaf stretch.
Gerbera jamesonii F1 Gerbera BENGAL ™ / CARTWHEEL ® / JAGUAR ™ REC TRAY FORMS PLUG TIME
SEEDS/CELL SEED COVER GERM TIME
SOIL TEMP
GERM LIGHT
MEDIA pH/EC
128-cell tray pH: 5.5–5.9 SME 0.5–0.75 mS/cm Comments: Under low light conditions provide supplemental HID light if possible; do not extend day length as this will extend the time to flower. It is critical to allow adequate dry back between irrigations to prevent stunted and distorted growth. Because of this do not mist at night. If germinating on a bench it is best to use a tent system to increase humidity and reduce the frequency of irrigations/misting. SatinCoat ™ 5–6 weeks 1 No 4 days 74–76 °F (23–24 °C) Required for germination
Helianthus annuus Sunflower SUNFINITY ® REC TRAY FORMS PLUG TIME
SEEDS/CELL SEED COVER GERM TIME
SOIL TEMP
GERM LIGHT
MEDIA pH/EC
72-cell
Raw
4 weeks
1
Yes
5–6 days
68–72 °F (20–22 °C)
Not required for germination pH: 5.5–5.8
SME 1.0–1.5 mS/cm Comments: For summer production, apply a Bonzi ® sprench within 48 hours of sowing (3–5 quarts per 100 sq ft.) to control hypocotyl stretch. Use 0.5-1 ppm for Yellow-Red Bicolor and 2-3 ppm for Yellow Dark Center. Plugs must be propagated under long day (+13 hour) photoperiods in order to prevent delays in flowering. During warmer periods of plug production, a B-Nine ® WSG spray at 1,250–2,500 ppm can be applied 3 weeks after sowing to maintain internode control. This can be done only when the first Bonzi ® media sprench has not managed growth based on expectations. For more information on Sunfinity ® visit us at www.syngentaflowers.com/ams/sunfinity.
Impatiens hawkeri F1 Impatiens New Guinea FLORIFIC ® REC TRAY FORMS PLUG TIME
SEEDS/CELL SEED COVER GERM TIME
SOIL TEMP
GERM LIGHT
MEDIA pH/EC
288-cell tray
Raw
4–6 weeks
1
Yes
8 days
70–75 °F (21–24 °C)
Not required for germination pH: 5.8–6.2
SME 0.9–1.3 mS/cm
Comments: Ensure a good scouting program for thrips is in place.
Impatiens walleriana F1 Impatiens ACCENT ™ / ACCENT ™ PREMIUM / ATHENA ™ / XTREME ™ REC TRAY FORMS PLUG TIME SEEDS/CELL SEED COVER GERM TIME SOIL TEMP
GERM LIGHT
MEDIA pH/EC
288-cell tray pH: 5.8–6.2 SME 0.5–0.75 mS/cm Comments: Use a calcium-based fertilizer and feed once a week at most to avoid soft growth and stretching of plugs. Do not let plants go into the night with wet foliage or tip abortion may occur. Downward cupping or twisting of immature leaves may be caused by overuse of PGRs. Subdue Maxx ® and/or Segway ® drenches are recommended plug stage fungicides for disease management. Raw 4–5 weeks 1 Yes 3–5 days 72–75 °F (22–24 °C) Required for germination
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