GROWER SUCCESS GUIDE | SEED FINISHING
Geranium Ivy TORNADO ™ F1 Pelargonium peltatum MEDIA pH/EC LIGHT LEVEL
DAY LENGTH DAY TEMP NIGHT TEMP FERTILIZER FINISHING PROGRAM
PESTS
DISEASES
pH: 5.8–6.2 SME 0.9–1.3 mS/cm, PourThru EC: 1.4–2.0 mS/cm
4,000–6,000 foot candles Day neutral
68–70 °F (20–21 °C)
60–62 °F (16–17 °C)
125–175 ppm N 1 qt. | 1 ppp | 8–9 weeks
Fungus Gnats, Shoreflies and Thrips
Botrytis, Rhizoctonia, Pythium,
1.25 qt. | 2–3 ppp | 9–10 weeks 2.5 qt. | 2–3 ppp | 9–10 weeks 3 qt. | 3–4 ppp | 10–11 weeks 1.5 gal. HB | 3–5 ppp | 10–11 weeks
Thielaviopsis and Bacterial Root and Leaf Diseases
FINISH PGRs
TECH TIPS
If necessary sprays of Cycocel ® at 300–500 ppm will help control growth. Do not apply more than 750 ppm Cycocel ® or leaf edge yellowing may occur. Using a spray adjuvant such as CapSil ® will reduce the chance of leaf edge yellowing. Do not apply Cycocel ® when flower buds are plainly visible. Late Cycocel ® sprays can result in small and/or malformed flowers.
Geraniums are irradiance plants so the more light they receive the faster they will flower. Under short days or cloudy conditions it is beneficial to provide supplemental lighting of around 400 foot candles (4,000 lux) especially in the plug tray to speed up flowering. All geraniums are especially sensitive to bacterial diseases so be sure to start with clean plug trays, media and propagation areas. Geranium seed does not carry bacterial diseases so if you start clean you can stay clean. Do not subirrigate or use recycled water. Media pH should not drop below 6.0 or the plants may suffer from iron and/or manganese toxicity.
Gerbera BENGAL ™ F1 Gerbera jamesonii MEDIA pH/EC LIGHT LEVEL
DAY LENGTH DAY TEMP NIGHT TEMP FERTILIZER FINISHING PROGRAM
PESTS
DISEASES
pH: 5.5–5.9 SME 1.5–2.1 mS/cm, PourThru EC: 2.3–3.2 mS/cm
4,000–6,000 foot candles Facultative short day
70–72 °F (21–22 °C)
66–68 °F (19–20 °C)
125–175 ppm N 1.25 qt. | 1 ppp | 10–11 weeks 2.5 qt. | 1 ppp | 10–11 weeks 3 qt. | 3 ppp | 11–12 weeks
Aphids, Fungus Gnats, Shore Flies, Broad Mites, Cyclamen Mites, Spider Mites, Thrips, Whiteflies and Leafminers.
Alternaria, Botrytis, Powdery Mildew, Phytophthora, Rhizoctonia and Pythium.
1.5 gal. HB | 3 ppp | 11–12 weeks 1.5 gal. pot | 3 ppp | 11–12 weeks
FINISH PGRs
TECH TIPS
If needed sprays of B-Nine ® at 2,500–5,000 ppm or A-Rest ® at 1–3 ppm are effective. Under long day conditions leaves will be larger so more frequent PGR applications may be necessary. Do not apply PGRs once the buds reach 1 cm in diameter (pea size) since this can cause smaller flower and short flower stems.
Under low light conditions provide supplemental HID light if possible; do not extend daylength 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.
Gerbera CARTWHEEL ® F1 Gerbera jamesonii MEDIA pH/EC LIGHT LEVEL
DAY LENGTH DAY TEMP NIGHT TEMP FERTILIZER FINISHING PROGRAM
PESTS
DISEASES
pH: 5.5–5.9 SME 1.5–2.1 mS/cm, PourThru EC: 2.3–3.2 mS/cm
4,000–6,000 foot candles Facultative short day
70–72 °F (21–22 °C)
66–68 °F (19–20 °C)
125–175 ppm N 1.25 qt. | 1 ppp | 10–11 weeks 2.5 qt. | 1 ppp | 10–11 weeks 3 qt. | 3 ppp | 11–12 weeks 1.5 gal. pot | 3 ppp | 11–12 weeks
Aphids, Fungus Gnats, Shore Flies, Broad Mites, Cyclamen Mites, Spider Mites, Thrips, Whiteflies and Leafminers.
Alternaria, Botrytis, Powdery Mildew, Phytophthora, Rhizoctonia and Pythium.
FINISH PGRs
TECH TIPS
If needed sprays of B-Nine ® at 2,500–5,000 ppm or A-Rest ® at 1–3 ppm are effective. Under long day conditions leaves will be larger so more frequent PGR applications may be necessary. Do not apply PGRs once the buds reach 1 cm in diameter (pea size) since this can cause smaller flower and short flower stems.
Under low light conditions provide supplemental HID light if possible; do not extend daylength 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.
Gerbera ELEPHANT ™ F1 Gerbera jamesonii MEDIA pH/EC LIGHT LEVEL
DAY LENGTH DAY TEMP NIGHT TEMP FERTILIZER FINISHING PROGRAM
PESTS
DISEASES
pH: 5.5–5.9 SME 1.5–2.1 mS/cm, PourThru EC: 2.3–3.2 mS/cm
4,000–6,000 foot candles Facultative short day
70–72 °F (21–22 °C)
66–68 °F (19–20 °C)
125–175 ppm N 1.25 qt. | 1 ppp | 9–10 weeks 2.5 qt. | 1 ppp | 9–10 weeks 3 qt. | 2–3 ppp | 10–11 weeks 1.5 gal. pot | 3 ppp | 10–11 weeks
Aphids, Fungus Gnats, Shore Flies, Broad Mites, Cyclamen Mites, Spider Mites, Thrips, Whiteflies and Leafminers.
Alternaria, Botrytis, Powdery Mildew, Phytophthora, Rhizoctonia and Pythium.
FINISH PGRs
TECH TIPS
If needed sprays of B-Nine ® at 2,500–5,000 ppm or A-Rest ® at 1–3 ppm are effective. Under long day conditions leaves will be larger so more frequent PGR applications may be necessary. Do not apply PGRs once the buds reach 1 cm in diameter (pea size) since this can cause smaller flower and short flower stems.
Under low light conditions provide supplemental HID light if possible; do not extend daylength 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.
249
Made with FlippingBook Learn more on our blog