Grower Success Guide 2020-2021 | North America

GROWER SUCCESS GUIDE | VEGETATIVE FINISHING

Calocephalus WHIMSY ™ Calocephalus brownii 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 | 4–6 weeks 1 pt. | 1 ppp | 4–6 weeks 1.25 qt. | 1 ppp | 4–6 weeks

PESTS

DISEASES

FINISH PGRS

VARIETY

VIGOR TIMING

No major pests Botrytis, Fungal Root Rot

Does not require any chemical growth regulation. If plants get too large for their container, then it’s best to trim the plants back to control growth.

Whimsy ™ Silver 70060862

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Tech Tips: Whimsy calocephalus is a compact plant that has low water and fertilizer requirements. Use plastic tenting or ReeMay ® fabric during propagation if needed to keep high humidity, and to minimize excess water on the foliage. Provide moderate to warm temperatures early on after transplant to get the plants established. Avoid over-saturated media and overly cool temperatures. Whimsy may form bright yellow flowers on very mature plants, but its main value is its unique silver foliage.

Curry Plant HELICHRYSUM ITALICUM Helichrysum italicum 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 | 5–6 weeks 1.25 qt. | 1–2 ppp | 7–9 weeks 2.5 qt. | 1–2 ppp | 7–9 weeks 3 qt. | 2–4 ppp | 8–9 weeks 1.5 gal. pot | 2–4 ppp | 8–9 weeks

PESTS

DISEASES

FINISH PGRS

VARIETY

VIGOR TIMING

Fungus Gnats, Whiteflies

Botrytis, Fungal Root Rot

Does not require any chemical growth regulation. If plants get too large for their container, then it’s best to trim the plants back to control growth.

Icicles 70003687

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Tech Tips: Helichrysum italicum (Curry Plant) is a mounding plant that has low water and fertilizer requirements. Use plastic tenting or ReeMay ® fabric during propagation if needed to keep high humidity and to minimize excess water on the foliage. Provide moderate to warm temperatures early on after transplant to get the plants established. Avoid over-saturated media and overly cool temperatures. Helichrysum italicum may form golden yellow flowers on very mature plants, but its main value is its unique silver-colored foliage. Trimming plants is the best way to control growth. The cultivar ‘Icicles’ is the primary variety on the market and the variety which is sold by Syngenta Flowers.

Dahlia DAHLEGRIA ® Dahlia 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 short day

72–74 °F (22–23 °C)

66–68 °F (19–20 °C)

200–250 ppm N 1 Pinch

1 qt. | 1 ppp | 7–8 weeks 1 pt. | 1 ppp | 7–8 weeks

1.25 qt. | 1 ppp | 8–9 weeks 2.5 qt. | 2 ppp | 9–10 weeks 3 qt. | 2 ppp | 9–10 weeks 1.5 gal. pot | 3 ppp | 10–11 weeks

PESTS

DISEASES

FINISH PGRS

VARIETY

VIGOR TIMING

Aphid, Spider Mites, Thrips, Leaf Miners

B-Nine ® WSG (2500–3500 ppm) are usually sufficient to control growth. A Bonzi ® drench (3–4 ppm) can also be used to control growth or to hold plants for sale.

Dahlegria ® Apricot Tricolor 70082922 Dahlegria ® Magenta Bicolor 70089162

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Botrytis, Powdery Mildew, Basal Stem Rot

Dahlegria ® Orange 70082927

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Dahlegria ® Orange Bicolor 70082923 Dahlegria ® Pink Flame 70082925 Dahlegria ® Red Imp. 70089151 Dahlegria ® Scarlet Fire 70082926 Dahlegria ® Sunrise 70089160 Dahlegria ® White 70082924

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M-L Tech Tips: Long-day lighting (daylength extension or night interruption) is needed during propagation to avoid premature flowering and tuber formation. Ideal photoperiod during finishing to provide the correct balance between vegetative growth and flower formation is between 13–14 hours. Growing under very short natural days (< 12 hours) will result in short plants, fast flowering, and root tubers. Provide warm temperatures early on in finishing to allow plants to establish after transplant. Plant the rooted cutting relatively deep to provide good support and balance in the pot for the maturing plants. Scout and treat for a range of insects and diseases, including Spider Mites, Thrips, and Powdery Mildew.

Dahlia GOLDALIA ™ Dahlia 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 Short Day

70–72 °F (21–22 °C)

66–68 °F (19–20 °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. | 1–2 ppp | 9–10 weeks 3 qt. | 3 ppp | 9–10 weeks 1.5 gal. HB | 4 ppp | 10–11 weeks

PESTS

DISEASES

FINISH PGRS

VARIETY

VIGOR TIMING

Aphids, Spider Mites, Thrips, Leaf Miners

B-Nine ® WSG (1,500–2,500 ppm) are usually sufficient to control growth. A Bonzi ® drench (2–3 ppm) can also be used to control growth or to hold plants for sale.

Goldalia ™ Rose 70035934 Goldalia ™ Scarlet 70035935

C-M E C-M E

Botrytis, Powdery Mildew, Basal Stem Rot

Tech Tips: Long-day lighting (day length extension or night interruption) is needed during propagation to avoid premature flowering and tuber formation. Ideal photoperiod during finishing to provide the correct balance between vegetative growth and flower formation is between 13–14 hours. Growing under very short natural days (< 2 hours) will result in short plants, fast flowering, and root tubers. Provide warm temperatures early on in finishing to allow plants to establish after transplant. Plant the rooting cutting relatively deep to provide good support and balance in the pot for the maturing plants. Scout and treat for a range of insects and diseases, including Spider Mites, Thrips, and Powdery Mildew.

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