PERENNIALS | SEED FINISHING
Doronicum orientale Leopard’s Bane LEONARDO ™ COMPACT
FERTILIZER RATE (PPM N)
FINISHING PROGRAM
PESTS
DISEASES
FINISH PGRS
75–125 ppm N
1 qt. | 1 ppp | 7–8 weeks 1 gal. | 1–2 ppp | 8–9 weeks
Aphids
Botrytis, Powdery mildew, Pythium
If necessary, a Bonzi ® spray at 30 ppm can be used to control growth. Apply PGRs as the flower stalks are just beginning to elongate above the foliage. One to two applications applied seven days apart should provide adequate height control.
Echinacea purpurea Coneflower PRAIRIE SPLENDOR ™ / PRAIRIE SPLENDOR ™ COMPACT / PRAIRIE BLAZE ™
FERTILIZER RATE (PPM N)
FINISHING PROGRAM
PESTS
DISEASES
FINISH PGRS
75–125 ppm N
1 qt. | 1–2 ppp | 10–12 weeks 1 gal. | 3 ppp | 10–12 weeks 2 gal. | 3–4 ppp | 10–12 weeks
If needed, spray applications of Bonzi ® at 15 ppm or Sumagic ® at 5–10 ppm, or a Bonzi ® drench at 2–3 ppm are effective. Discontinue all PGR applications at visible bud.
Aphids, Whiteflies
Powdery mildew, Fusarium, Fungal leaf spot
Erysimum hybridum Wallflower CANARIES ™
FERTILIZER RATE (PPM N)
FINISHING PROGRAM
PESTS
DISEASES
FINISH PGRS
75–125 ppm N
1 qt. | 1–2 ppp | 9–10 weeks 1 gal. | 3 ppp | 9–10 weeks
Aphids
Botrytis, Powdery mildew, Rhizoctonia, Rust
When grown under high light and cool temperatures, PGRs are not necessary. If moderate control is needed spray a tank mix of B-Nine ® WSG at 2,500 ppm and Altercel ® at 1,000 ppm. For a more aggressive control, sprays of Bonzi ® at 15 ppm can be used.
Iberis sempervirens Candy Tuft WHISTLER ™
FERTILIZER RATE (PPM N)
FINISHING PROGRAM
PESTS
DISEASES
FINISH PGRS
75–125 ppm N
1 qt. | 1–2 ppp | 5–6 weeks 1 gal. | 2–3 ppp | 5–6 weeks
Aphids
Botrytis, Powdery mildew If necessary, sprays of B-Nine ® WSG at 2,500 ppm can be used. Also an alternative, sprays of Bonzi ® at 15 ppm may be applied.
Lavandula angustifolia English Lavender SCENT ™
FERTILIZER RATE (PPM N)
FINISHING PROGRAM
PESTS
DISEASES
FINISH PGRS
75–125 ppm N
1 qt. | 1–2 ppp | 8–9 weeks 1 gal. | 2–3 ppp | 9–10 weeks 2 gal. | 3–4 ppp | 10–11 weeks
If needed, use either B-Nine ® WSG spray at 2,500 ppm, or Bonzi ® spray at 10–15 ppm.
Aphids, Whiteflies
Phytophthora, Pythium, Fungal leaf spot
Lavandula stoechas Spanish Lavender CASTILLIANO 2.0 ™
FERTILIZER RATE (PPM N)
FINISHING PROGRAM
PESTS
DISEASES
FINISH PGRS
125–175 ppm N 1 qt. | 1–2 ppp | 8–9 weeks 1 gal. | 2–3 ppp | 9–10 weeks
Aphids, Leafhoppers, Spider mites, Whiteflies
If needed, spray applications of Bonzi ® at 10–15 ppm or B-Nine ® WSG at 2,500–3,750 ppm are effective.
Botrytis, Phytophthora, Pythium, Rhizoctonia, Bacterial leaf spot, Fungal leaf spot
GROWER SUCCESS GUIDE 2026–2028
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