GROWER SUCCESS GUIDE | SEED FINISHING
Impatiens ATHENA ™ F1 Impatiens walleriana 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
2,000–4,000 foot candles Day Neutral
72–74 °F (22–23 °C)
62–64 °F (17–18 °C)
75–125 ppm N Large Packs | 1 ppp | 5–6 weeks 1 pt. | 1 ppp | 5–6 weeks 1 qt. | 1 ppp | 6–7 weeks
Thrips, Fungus Gnats, Aphids and Spider Mites
Impatiens Downy Mildew, Pythium Root Rot, Botrytis Blight, INSV, TSWV, Pseudomonas, Rhizoctonia and Alternaria Leaf Spot
1.25 qt. | 1–3 ppp | 7–8 weeks 2.5 qt. | 1–3 ppp | 7–8 weeks 3 qt. | 5–7 ppp | 8–10 weeks 1.5 gal. HB | 5–7 ppp | 8–10 weeks 1.5 gal. pot | 5–7 ppp | 8–10 weeks 2 gal. HB | 5–7 ppp | 8–10 weeks
FINISH PGRs
TECH TIPS
Impatiens are responsive to B-Nine ® WSG, Bonzi ® and Sumagic ® .
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 recom- mended plug stage fungicides for disease management.
Impatiens IMARA ™ XDR F1 Impatiens walleriana 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
2,000–4,000 foot candles Day neutral
72–74 °F (22–23 °C)
62–64 °F (17–18 °C)
75–125 ppm N Packs | 1 ppp | 4–5 weeks
Thrips, Fungus Gnats, Aphids and Spider Mites
Pythium Root Rot, Botrytis Blight, INSV, TSWV, Pseudomonas, Rhizoctonia and Alternaria Leaf Spot
Large Packs | 1 ppp | 4–5 weeks 1 pt. | 1 ppp | 6–7 weeks 1 qt. | 1–2 ppp | 6–7 weeks 1.25 qt. | 1–3 ppp | 7–8 weeks 1.5 gal. HB | 5–7 ppp | 9–10 weeks 1.5 gal. pot | 5–7 ppp | 9–10 weeks
FINISH PGRs
TECH TIPS
Impatiens are responsive to B-Nine ® WSG, Bonzi ® and Sumagic ® .
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 im- mature leaves may be caused by overuse of PGRs. Subdue Maxx ® and/or Segway ® drenches are recommend- ed plug stage fungicides for disease management, and rotations of Mural ® and Micora ® sprays and Segovis ® sprays or drenches are recommended for the finishing stage.
Impatiens XTREME ™ F1 Impatiens walleriana 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
2,000–4,000 foot candles Day neutral
72–74 °F (22–23 °C)
62–64 °F (17–18 °C)
75–125 ppm N Packs | 1 ppp | 5–6 weeks
Thrips, Fungus Gnats, Aphids and Spider Mites
Impatiens Downy Mildew, Pythium Root Rot, Botrytis Blight, INSV,TSWV, Pseudomonas, Rhizoctonia and Alternaria Leaf Spot
Large Packs | 1 ppp | 5–6 weeks 1 pt. | 1 ppp | 6–7 weeks 1 qt. | 1–2 ppp | 6–7 weeks 1.25 qt. | 2–3 ppp | 7–8 weeks 1.5 gal. HB | 5–7 ppp | 9–10 weeks 1.5 gal. pot | 5–7 ppp | 9–10 weeks
FINISH PGRs
TECH TIPS
Responsive to B-Nine ® WSG, Bonzi ® and Sumagic ® . Xtreme Impatiens are bred to be more compact than standard Impatiens so may require less PGRs.
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 recom- mended plug stage fungicides for disease management.
Impatiens New Guinea FLORIFIC ® F1 Impatiens hawkeri 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
2,000–4,000 foot candles Day neutral
76–78 °F (24–26 °C)
66–68 °F (19–20 °C)
75–125 ppm N Large Packs | 1 ppp | 7–9 weeks 1 pt. | 1 ppp | 7–9 weeks 1 qt. | 1 ppp | 7–9 weeks
Fungus Gnats, Spider Mites, Thrips
Botrytis, Pythium, Rhizoctonia, Tomato Spotted Wilt Virus, Impatiens Necrotic Spot Virus. Florific New Guinea Impatiens are highly resistant to Impatiens Downy Mildew.
1.25 qt. | 1–2 ppp | 7–9 weeks 2.5 qt. | 2–3 ppp | 8–10 weeks 1.5 gal. HB | 3–5 ppp | 8–10 weeks
FINISH PGRs
TECH TIPS
Usually not required in larger containers. In small pots/packs or under low light conditions spray with Bonzi ® at 1–3 ppm as needed.
Ensure a good scouting program for Thrips is in place.
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