2026-2028 Grower Success Guide

PERENNIALS | SEED FINISHING

Aquilegia caerulea Columbine KIRIGAMI ™

FERTILIZER RATE (PPM N)

FINISHING PROGRAM

PESTS

DISEASES

FINISH PGRS

125–175 ppm N 1 qt. | 1 ppp | 8–10 weeks 1 gal. | 2-3 ppp | 8–10 weeks 2 gal. | 4–5 ppp | 8–10 weeks

If needed, B-Nine ® WSG spray at 2,500–5,000 ppm, or Bonzi ® drench at 10–15 ppm are effective. PGR applications are more effective if applied early in the crop cycle.

Aphids, Thrips, Foliar Nematode, Leafminers

Powdery mildew, Alternaria leaf spot, Pythium, Rhizoctonia, Thielaviopsis, Cucumber

mosaic virus (CMV infections attracts aphids), Impatiens

necrotic spot virus (INSV can be vectored by thrips)

Arenaria montana Sandwort BLIZZARD ™ COMPACT

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 | 8–9 weeks

Aphids

Botrytis, Pythium, Rhizoctonia

If needed, B-Nine ® WSG spray at 2,500 ppm can be used.

Aurinia saxatilis Alyssum SUMMIT ™

FERTILIZER RATE (PPM N)

FINISHING PROGRAM

PESTS

DISEASES

FINISH PGRS

75–125 ppm N

1 qt. | 1–2 ppp | 5–6 weeks 1 gal. | 3 ppp | 6–7 weeks

Aphids

Botrytis

If needed, sprays of B-Nine ® WSG at 2,500 ppm can be used.

Bellis perennis English Daisy BAM BAM ™

FERTILIZER RATE (PPM N)

FINISHING PROGRAM

PESTS

DISEASES

FINISH PGRS

125–175 ppm N Packs | 1 ppp | 11–13 weeks 1 pt. | 1 ppp | 13–15 weeks 1 qt. | 1 ppp | 13–15 weeks

Aphids, Thrips

Crown rot, Phoma, Rust

Bellis Bam Bam is naturally compact and should not require any PGR treatments, especially if grown cool and under high light. During fall growing conditions when growing conditions are not optimum, sprays of B-Nine ® WSG at 1,000–2,000 ppm are effective in controlling plant growth.

Bergenia cordifolia Bergenia SHOESHINE ™

FERTILIZER RATE (PPM N)

FINISHING PROGRAM

PESTS

DISEASES

FINISH PGRS

125–175 ppm N 1 qt. | 2 ppp | 20–24 weeks 1.25 qt. | 3 ppp | 20–24 weeks 3 qt. | 4–5 ppp | 20–24 weeks

Foliar Nematodes

Fungal leaf spot

Generally not required.

Campanula carpatica Bellflower PRISTAR ™

FERTILIZER RATE (PPM N)

FINISHING PROGRAM

PESTS

DISEASES

FINISH PGRS

125–175 ppm N 1 qt. | 1 ppp | 10–12 weeks 1 gal. | 2–3 ppp | 10–12 weeks

Aphids, Thrips, Whiteflies, Spider mites

If needed, spray applications of Bonzi ® at 10–15 ppm, or B-Nine ® at 2,500–3,750 ppm, or Altercel ® at 750 ppm. PGR applications are more effective if applied early in the crop cycle.

Botrytis, Pythium, Fungal leaf spot

Campanula portenschlagiana Bellflower CLOCKWISE ™

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, Thrips, Whiteflies, Spider mites

If necessary, B-Nine ® WSG spray at 2,500–3,750 ppm, or Altercel ® spray at 500–1,000 ppm have been shown to be effective.

Botrytis, Pythium, Rhizoctonia

GROWER SUCCESS GUIDE 2026–2028

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