2026-2028 Grower Success Guide

PERENNIALS | SEED FINISHING

Lavandula stoechas Spanish Lavender VIOLETA ™ XL

FERTILIZER RATE (PPM N)

FINISHING PROGRAM

PESTS

DISEASES

FINISH PGRS

75–125 ppm N

1 qt. | 1–2 ppp | 8–9 weeks 1 gal. | 3 ppp | 9–10 weeks 2 gal. | 4 ppp | 9–10 weeks

B-Nine ® WSG spray at 2,500 ppm, or Bonzi ® spray at 10–15 ppm.

Aphids, Whiteflies

Phytophthora, Pythium, Fungal leaf spot

Papaver nudicaule Iceland Poppy SPRING FEVER ®

FERTILIZER RATE (PPM N)

FINISHING PROGRAM

PESTS

DISEASES

FINISH PGRS

75–125 ppm N

1 qt. | 1 ppp | 6–7 weeks 1 gal. | 3 ppp | 6–10 weeks

Aphids, Spider mites, Thrips

Bacterial Blight, Phytophthora, Powdery mildew, Rhizoctonia

Spray B-Nine ® WSG at 2,500 ppm to tone growth. A Bonzi ® drench at 2–3 ppm can be applied to hold plants for sale.

Platycodon grandiflorus Balloon Flower TWINKLE ™

FERTILIZER RATE (PPM N)

FINISHING PROGRAM

PESTS

DISEASES

FINISH PGRS

125–175 ppm N 1 qt. | 1–2 ppp | 12–13 weeks 1 gal. | 2–3 ppp | 12–13 weeks

Aphids, Leafminers, Slugs, Snails, Spider mites, Thrips

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

Botrytis, Pythium, Rhizoctonia, Verticillium, Phytophthora

Pritzelago alpina Chamois Cress ICECUBE ™

FERTILIZER RATE (PPM N)

FINISHING PROGRAM

PESTS

DISEASES

FINISH PGRS

125–175 ppm N 1 qt. | 1–2 ppp | 5–7 weeks 1 gal. | 3 ppp | 5–7 weeks

No major pests

Botrytis, Pythium, Rhizoctonia

Spray applications of B-Nine ® WSG at 2,500–5,000 ppm or Bonzi ® at 5–10 ppm applied early in the crop cycle.

Salvia x superba Salvia MERLEAU ®

FERTILIZER RATE (PPM N)

FINISHING PROGRAM

PESTS

DISEASES

FINISH PGRS

75–125 ppm N

1 qt. | 1–2 ppp | 7–8 weeks 1 gal. | 2–3 ppp | 7–8 weeks 3 gal. | 5–6 ppp | 7–8 weeks

B-Nine ® WSG spray at 2,500 ppm.

Aphids, Spider mites, Whiteflies

Powdery mildew, Rhizoctonia, Thielaviopsis

Saxifraga x arendsii Saxifraga LOFTY ™

FERTILIZER RATE (PPM N)

FINISHING PROGRAM

PESTS

DISEASES

FINISH PGRS

75–125 ppm N

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

Aphids

Botrytis, Powdery mildew, Rust

Not necessary

Sedum telephium Sedum SURRENDER ™

FERTILIZER RATE (PPM N)

FINISHING PROGRAM

PESTS

DISEASES

FINISH PGRS

75–125 ppm N

1 qt. | 1 ppp | 13–15 weeks 1.25 qt.-2.5 qt. | 2-3 ppp | 13–15 weeks

Aphids, whiteflies

Botrytis, powdery mildew, Fusarium, Rhizoctonia, and Colletotrichum stem rot

Growth regulators are not generally required for this well-branched seed sedum, especially if grown dry. Sprays of B-Nine ® WSG at 2,500-5,000 ppm or Bonzi ® at 5–15 ppm can be utilized to control growth.

GROWER SUCCESS GUIDE 2026–2028

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