Grower Success Guide 2020-2021 | North America

GROWER SUCCESS GUIDE | VEGETATIVE FINISHING

Begonia FLORENCIO ™ Begonia hybrida MEDIA pH/EC LIGHT LEVEL

DAY LENGTH DAY TEMP NIGHT TEMP FERTILIZER

PINCHES

FINISHING PROGRAM

pH: 5.8–6.2 SME 1.5–2.1 mS/cm, PourThru EC: 2.3–3.2 mS/cm

4,000–6,000 foot candles

Obligate long day

68–70 °F (20–21 °C)

62–64 °F (17–18 °C)

200–250 ppm N 1 Pinch

1 qt. | 1 ppp | 6–9 weeks 2.5 qt. | 2–3 ppp | 9–12 weeks 3 qt. | 2–3 ppp | 10–12 weeks 1.5 gal. pot | 3–4 ppp | 10–14 weeks

PESTS

DISEASES

FINISH PGRS

VARIETY

VIGOR TIMING

Thrips

Tospovirus, Botrytis

Cycocel ® 250–500ppm

Florencio ™ Orange 70091480 Florencio ™ Pink 70091479 Florencio ™ Red 70091476 Florencio ™ White 70091478 Florencio ™ Yellow 70091477

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Begonia GRACE ™ Begonia hybrida MEDIA pH/EC LIGHT LEVEL

DAY LENGTH DAY TEMP NIGHT TEMP FERTILIZER

PINCHES

FINISHING PROGRAM

pH: 5.8–6.2 SME 1.5–2.1 mS/cm, PourThru EC: 2.3–3.2 mS/cm

4,000–6,000 foot candles

Facultative long day

68–70 °F (20–21 °C)

62–64 °F (17–18 °C)

125–175 ppm N 1 Pinch

1 qt. | 1 ppp | 7–8 weeks 1.25 qt. | 1 ppp | 8–9 weeks 2.5 qt. | 1 ppp | 8–9 weeks 3 qt. | 1 ppp | 8–9 weeks

1.5 gal. HB | 3 ppp | 10–11 weeks 1.5 gal. pot | 3 ppp | 10–11 weeks 2 gal. HB | 3 ppp | 12–13 weeks

PESTS

DISEASES

FINISH PGRS

VARIETY

VIGOR TIMING

Thrips

Tospovirus, Botrytis

PGRs are not usually required. B-Nine ® WSG at 2,500 ppm or Cycocel ® at 300–500 ppm if needed.

Grace ™ Dark Red 70086288 Grace ™ Orange 70086283 Grace ™ Pink 70086285

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Tech Tips: To prevent tuber formation you must provide at least 14 hours of light and you must not let temperatures fall below 55 °F (13 °C). Short days and/or cool temperatures will drastically stunt growth.

Bidens MEXICAN GOLD ™ Bidens ferulifolia MEDIA pH/EC LIGHT LEVEL

DAY LENGTH DAY TEMP NIGHT TEMP FERTILIZER

PINCHES

FINISHING PROGRAM

pH: 5.8–6.2 SME 1.5–2.1 mS/cm, PourThru EC: 2.3–3.2 mS/cm

4,000–6,000 foot candles

Day neutral

70–72 °F (21–22 °C)

62–64 °F (17–18 °C)

125–175 ppm N 1 Pinch

1 qt. | 1 ppp | 6–7 weeks 1.25 qt. | 1 ppp | 8–9 weeks 2.5 qt. | 1 ppp | 9–10 weeks 3 qt. | 3 ppp | 9–10 weeks 1.5 gal. HB | 3–4 ppp | 10–11 weeks

PESTS

DISEASES

FINISH PGRS

VARIETY

VIGOR TIMING

Whiteflies

Botrytis

B-Nine ® (2500 ppm) can be used to control growth. A tank-mix spray of Florel ® (350 ppm) + B-Nine ® (1500 ppm) can also be used to control growth and improve branching early in production, especially if not given this treatment in propagation. A Bonzi ® drench (0.5–1 ppm) can be given 3–4 weeks before finishing and results in toned, high quality plants.

Mexican Gold ™ 70018300

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Mexican Gold ™ Compact 70003254 Mexican Gold ™ Jumbo 70003253 Mexican Gold ™ Semi-Double 70018302

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M E Tech Tips: Mexican Gold cuttings root quickly and should be transplanted on time. Plants are moderately vigorous and early flowering, and will fill out containers quickly. Mexican Gold forms a well-branched, mounding to semi-trailing plant with just one pinch. Gold Compact will take more time to fill out pots than the other varieties (Gold, Gold Jumbo, and Gold Semi-Double). These are great plants for mixed containers and the flowers mingle well with other species.

Calendula CALEO ™ Calendula hybrida MEDIA pH/EC LIGHT LEVEL

DAY LENGTH DAY TEMP NIGHT TEMP FERTILIZER

PINCHES

FINISHING PROGRAM

pH: 5.8–6.2 SME 1.5–2.1 mS/cm, PourThru EC: 2.3–3.2 mS/cm

4,000–6,000 foot candles

Day Neutral

70–72 °F (21–22 °C)

62–64 °F (17–18 °C)

200–250 ppm N 1 Pinch

1 qt. | 1 ppp | 6–7 weeks 1.25 qt. | 1 ppp | 8–9 weeks 2.5 qt. | 1 ppp | 9–10 weeks 3 qt. | 2–3 ppp | 9–10 weeks 1.5 gal. HB | 4 ppp | 10–11 weeks

PESTS

DISEASES

FINISH PGRS

VARIETY

VIGOR TIMING

Aphids, Whiteflies

Botrytis, Powdery Mildew

B-Nine ® WSG (2,500–5,000 ppm), Sumagic ® (1–2 ppm), or Bonzi ® (2–4 ppm) can be applied to the plants as needed.

Caleo ™ Orange 70054975 Caleo ™ Yellow 70060726

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M Tech Tips: Varieties vary between single and semi-double type flowers. Plants are relatively fast growers and fill containers and baskets quickly. Caleo Calendulas tolerate a range of temperatures and growing conditions. However, the best plant quality occurs when plants are grown under relatively cool temperatures and high light intensities. Extremely high temperatures will result in reduced flower size and more open habits. Caleo was bred and selected for Powdery Mildew resistance, but plants should be inspected periodically under high disease pressure.

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