GROWER SUCCESS GUIDE | VEGETATIVE FINISHING
Geranium Zonal AMERICANA ® Pelargonium zonale MEDIA pH/EC LIGHT LEVEL
DAY LENGTH DAY TEMP NIGHT TEMP FERTILIZER
PINCHES
FINISHING PROGRAM
pH: 5.8–6.2 SME 2.3–2.8 mS/cm, Pourthru EC: 3.5–4.2 mS/cm
4,000–6,000 foot candles
Day Neutral
72–74 °F (22–23 °C)
68–70 °F (20–21 °C)
200–250 ppm N Not Recommended 1.25 qt. | 1 ppp | 9–10 weeks 2.5 qt. | 1 ppp | 11–12 weeks 3 qt. | 3 ppp | 11–12 weeks
1.5 gal. HB | 3–4 ppp | 11–12 weeks 1.5 gal. pot | 2 ppp | 11–12 weeks 2 gal. HB | 4–5 ppp | 11–12 weeks
PESTS
DISEASES
FINISH PGRS
VARIETY
VIGOR TIMING
Aphids and Thrips
Botrytis, Pythium Root Rot, and Xanthomonas Bacterial Blight and Wilt
Cycocel ® at 1,000 ppm and under hot conditions with a tank mix spray of Cycocel ® (1,000 ppm) + B-Nine ® WSG (2,500 ppm) or Bonzi ® spray (3–5 ppm). Florel ® can also be sprayed at 350–400 ppm early in the crop cycle, especially for larger pots and baskets, to improve branching and control growth.
Americana ® Bright Red 70020478 Americana ® Cherry Rose 70020479 Americana ® Coral 70020480 Americana ® Dark Red 70020527 Americana ® Dark Salmon 70004135 Americana ® Hot Pink 70028742 Americana ® Lavender Splash 70020550 Americana ® Light Pink Splash 70004127 Americana ® Orchid 70020482 Americana ® Pink 70004093 Americana ® Red 70007854 Americana ® Rose Ice 70064619 Americana ® Salmon 70020528 Americana ® Scarlet Fire 70074607 Americana ® Violet Ice 70070037 Americana ® White 70020529 Americana ® White Splash 70020558 Americana ® Rose Mega Splash 70004155
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M E-M Tech Tips: Americana Geraniums are moderately vigorous and usually require regular plant growth regulator (PGR) applications, especially under warm growing conditions. Provide relatively high light levels and warm temperatures early on to establish the plant and to allow it to respond adequately to PGRs. Early Florel ® sprays are crucial to making well-branched, quality plants. Watch for Botrytis under tight spacing and in combination plantings, especially when overhead irrigating. Monitor the media and try to keep the pH at or above 6.0 to avoid iron/manganese toxicity.
Geranium Zonal ROCKY MOUNTAIN ™ Pelargonium zonale MEDIA pH/EC LIGHT LEVEL
DAY LENGTH DAY TEMP NIGHT TEMP FERTILIZER
PINCHES
FINISHING PROGRAM
pH: 5.8–6.2 SME 2.3–2.8 mS/cm, Pourthru EC: 3.5–4.2 mS/cm
4,000–6,000 foot candles
Day Neutral
72–74 °F (22–23 °C)
68–70 °F (20–21 °C)
200–250 ppm N Not Recommended 2.5 qt. | 1 ppp | 11–12 weeks 3 qt. | 3 ppp | 11–12 weeks 1.5 gal. HB | 3–4 ppp | 11–12 weeks
PESTS
DISEASES
FINISH PGRS
VARIETY
VIGOR TIMING
Aphids and Thrips
Botrytis, Pythium Root Rot, and Xanthomonas Bacterial Blight and Wilt
Cycocel ® at 1,000 ppm and under hot conditions with a tank mix spray of Cycocel ® (1,000 ppm) + B-Nine ® WSG (2,500 ppm) or Bonzi ® spray (3–5 ppm). Florel ® can also be sprayed at 350–400 ppm early in the crop cycle, especially for larger pots and baskets, to improve branching and control growth.
Rocky Mountain ™ Dark Red 70006932 Rocky Mountain ™ Deep Rose 70020534 Rocky Mountain ™ Lavender 70020490 Rocky Mountain ™ Light Pink 70020491 Rocky Mountain ™ Magenta 70020492 Rocky Mountain ™ Orange 70004111 Rocky Mountain ™ Pink 70006941 Rocky Mountain ™ Red 70004112 Rocky Mountain ™ Salmon 70004113 Rocky Mountain ™ Violet 70006935 Rocky Mountain ™ White 70004115
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M-V E Tech Tips: Rocky Mountain geraniums are rather vigorous and usually require regular PGR applications, especially under warm growing conditions. Provide relatively high light levels and warm temperatures early on to estab- lish the plant and to allow it to respond adequately to PGRs. Early Florel ® sprays are key to making well-branched, quality plants. Watch for Botrytis under tight spacing and in combination plantings, especially when overhead irrigating. Monitor the media and try to keep the pH at or above 6.0 to avoid iron/manganese toxicity.
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