PERENNIALS | SEED FINISHING
Coreopsis grandiflora Tickseed ANDIAMO ®
FERTILIZER RATE (PPM N)
FINISHING PROGRAM
PESTS
DISEASES
FINISH PGRS
75–125 ppm N
1 qt. | 1–2 ppp | 6–7 weeks 1 gal. | 3 ppp | 7–8 weeks 3 qt.–2 gal. | 4–5 ppp | 7-8 weeks
If necessary, sprays of Bonzi ® at 10–15 ppm or B-Nine ® WSG at 2,500–5,000 ppm. Sumagic ® sprays at 3–5 ppm have also been found to be effective.
Aphids, Thrips, Whiteflies
Botrytis, Pythium, Bacterial leaf spot (Pseudomonas cichorii)
Delphinium elatum Larkspur DELPHINA ™
FERTILIZER RATE (PPM N)
FINISHING PROGRAM
PESTS
DISEASES
FINISH PGRS
75–125 ppm N
1 qt. | 1 ppp | 9–11 weeks 1 gal. | 1 ppp | 9–11 weeks 2 gal. | 2–3 ppp | 9–11 weeks
If needed, spray applications of Bonzi ® at 10–15 ppm or Sumagic ® at 5–10 ppm are effective early in the crop cycle. Apply a Bonzi ® drench at 2–3 ppm to hold size.
Aphids, Thrips, Whiteflies
Botrytis, Pythium, Fungal leaf spot
Delphinium elatum Larkspur EXCALIBUR ™
FERTILIZER RATE (PPM N)
FINISHING PROGRAM
PESTS
DISEASES
FINISH PGRS
75–125 ppm N
1 qt. | 1 ppp | 9–10 weeks 1 gal. | 2–3 ppp | 9–10 weeks 2 gal. | 3–5 ppp | 9–10 weeks
If needed, sprays of Bonzi ® at 10–15 ppm, or Sumagic ® at 5–10 ppm. To help hold plants, a Bonzi ® drench at 2–4 ppm can be applied at the sign of visible bud.
Aphids, Whiteflies
Powdery mildew, Pythium, Fungal leaf spot
Delphinium grandiflorum Larkspur HUNKY DORY ™
FERTILIZER RATE (PPM N)
FINISHING PROGRAM
PESTS
DISEASES
FINISH PGRS
125–175 ppm N 2 qt. | 1–2 ppp | 9–10 weeks 1 gal. | 3 ppp | 9–10 weeks
Aphids, Whiteflies
Powdery mildew, Pythium If required, a combination spray of B-Nine ® WSG at 2,500 ppm plus Altercel ® at 1,000 ppm, or Bonzi ® spray at 15 ppm are effective.
Dianthus barbatus Sweet William BARBARINI ®
FERTILIZER RATE (PPM N)
FINISHING PROGRAM
PESTS
DISEASES
FINISH PGRS
125–175 ppm N 1 qt. | 1–2 ppp | 8–9 weeks 1 gal. | 3 ppp | 8–9 weeks
Aphids, Thrips, Whiteflies
Botrytis, Pythium
Plants will benefit from spray applications with one of the following PGRs: Bonzi ® spray at 10–15 ppm, or Sumagic ® spray at 3–5 ppm.
Digitalis purpurea Foxglove CAMELOT ™
FERTILIZER RATE (PPM N)
FINISHING PROGRAM
PESTS
DISEASES
FINISH PGRS
75–125 ppm N
1 gal. | 1 ppp | 9–10 weeks 2 gal. | 2–3 ppp | 9–10 weeks
Aphids, Leafminers
Botrytis
Bonzi ® sprays at 10–15 ppm, or Sumagic ® sprays at 5 ppm can be used. Apply PGRs before flower spike begin to elongate. Drench with Bonzi ® at 2–4 ppm to hold plants for sale.
Digitalis purpurea Digitalis DOTTIE ™
FERTILIZER RATE (PPM N)
FINISHING PROGRAM
PESTS
DISEASES
FINISH PGRS
100–150 ppm N 1 gal. | 1-2 ppp | 11-12 weeks 2 gal. | 2-3 ppp | 11-12 weeks
Aphids, Leafminers, Whiteflies, Thrips
Botrytis, Downy mildew Sprays of B-Nine ® WSG at 2,500-3,500 ppm, or Bonzi ® at 5-10 ppm are effective to control height. Apply PGRs before flower spike begins to elongate. Drench with Bonzi ® at 2–4 ppm to hold plants for sale.
GROWER SUCCESS GUIDE 2026–2028
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