PERENNIALS | VEGETATIVE FINISHING
FERTILIZER RATE (PPM N)
PINCH
FINISHING PROGRAM
PESTS
DISEASES
FINISH PGRS
200–250 ppm N Yes, 7–10 days after transplant
1.25 qt. to 2.5 qt. | 1 ppp | 10–12 weeks 3 qt. to 2 gal. | 2–3 ppp | 10–12 weeks
Aphids, Leafhoppers, Leafminers, Spider Mites
Powdery Mildew
If crop timing is correct, then PGRs are typically not necessary. If needed B-Nine ® WSG spray at 2,500 ppm should be sufficient.
FERTILIZER RATE (PPM N)
PINCH
FINISHING PROGRAM
PESTS
DISEASES
FINISH PGRS
75–125 ppm N
Yes, recommended in prop OR 7–10 days after transplant
1 qt. | 1 ppp | 5–6 weeks 1.25 to 2.5 qt. | 1 ppp | 6–7 weeks
Aphids, Thrips, Scale Downy Mildew, Powdery Mildew
Up until flower production PGRs are normally not necessary. To hold size use a Bonzi ® drench at 3–5 ppm at visible buds, or a Bonzi ® spray at 30 ppm.
FERTILIZER RATE (PPM N)
PINCH
FINISHING PROGRAM
PESTS
DISEASES
FINISH PGRS
125–175 ppm N Yes, two pinches
1.25 qt. to 2.5 qt. | 1 ppp | 8–10 weeks 3 qt. to 2 gal. | 2–3 ppp | 10–12 weeks
Aphids, Thrips, Spider Mites
Downy Mildew, Powdery Mildew
Mermaid Iberis tends to bolt after flower initiation. To control this unwanted stretch, drench with Bonzi ® (paclobutrazol) at 2 ppm to control plant height.
recommended in prop and second 7–10 days after transplant
FERTILIZER RATE (PPM N)
PINCH
FINISHING PROGRAM
PESTS
DISEASES
FINISH PGRS
125–175 ppm N Yes, 1–2 pinches are recommended either
1 qt. | 1 ppp | 10–12 weeks 2.5 qt. | 1 ppp | 13–15 weeks 3 qt. to 2 gal. | 3 ppp | 14–16 weeks
Aphids, Spider Mites, Whiteflies
Phytophthora, Rhizoctonia, Thielaviopsis, Pythium
B-Nine ® WSG spray at 2,500 ppm or a Bonzi ® spray at 15–30 ppm can be used early on in production. A Bonzi ® drench at 3–5 ppm at visible buds can be applied to hold the plants.
in propagation or 7–10 days after transplant.
FERTILIZER RATE (PPM N)
PINCH
FINISHING PROGRAM
PESTS
DISEASES
FINISH PGRS
125–175 ppm N Yes, 1–2 pinches are recommended either
1.25 qt. to 2.5 qt. | 1 ppp | 6–7 weeks 3 qt. to 2 gal. | 3 ppp | 6–7 weeks
Aphids, Spider Mites, Whiteflies
Phytophthora, Rhizoctonia, Thielaviopsis, Pythium
B-Nine ® WSG spray at 2,500 ppm or a Bonzi ® spray at 15–30 ppm can be used early on in production. A Bonzi ® drench at 3–5 ppm at visible buds can be applied to hold the plants.
in propagation or 7–10 days after transplant.
FERTILIZER RATE (PPM N)
PINCH
FINISHING PROGRAM
PESTS
DISEASES
FINISH PGRS
75–125 ppm N
Yes, 1–2 pinches are recommended either in propagation or 7–10 days after transplant.
1 qt. to 2.5 qt. | 1 ppp | 12–14 weeks 3 qt. to 2 gal. | 2–3 ppp | 12–14 weeks
Aphids, Spider Mites, Whiteflies
Phytophthora, Rhizoctonia, Thielaviopsis, Pythium
B-Nine ® WSG spray at 2,500 ppm or a Bonzi ® spray at 15–30 ppm can be used early on in production. A Bonzi ® drench at 3–5 ppm at visible buds can be applied to hold the plants.
FERTILIZER RATE (PPM N)
PINCH
FINISHING PROGRAM
PESTS
DISEASES
FINISH PGRS
125–175 ppm N No
1 qt. to 2.5 qt. | 1 ppp | 9–10 weeks 3 qt. to 2 gal. | 2–3 ppp | 9–10 weeks
Thrips, Aphids, Spider Mites, Lepidoptera
Powdery Mildew
B-Nine ® WSG spray at 2,500 ppm or Bonzi ® spray at 30 ppm. To hold the plant a Bonzi ® drench at 3–5 ppm can be used when the plant reaches visible buds.
GROWER SUCCESS GUIDE 2024–2025
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