ANNUALS | SEED FINISHING
FINISH PGRs
TECH TIPS
Under favorable conditions, growing on the dry side will control growth adequately. Fall crops usually require a PGR application due to the warmer temperatures. Sprays of B-Nine ® WSG at 2,500 ppm plus Altercel ™ at 1,000 ppm are effective as are sprays of Bonzi ® at 20 ppm.
Providing day length of longer than 13 hours in the spring will promote faster flowering. Do not let media stay saturated during periods of low light levels or root rot may occur.
FINISH PGRs
TECH TIPS
Recommended are three sprays of Bonzi ® at 25 ppm or B-Nine ® WSG at 5,000 ppm applied 7–10 days apart, beginning 2 weeks after transplant. B-Nine ® WSG may delay flowering by 4–7 days. A Bonzi ® drench at 2–4 ppm when the plant has reached the desired height will help prevent stretch at retail.
Cleome grows best in warm days and high light. They are also heavy feeders, so use a constant liquid feed program an ammonium-based fertilizer such as 21–5–20.
FINISH PGRs
TECH TIPS
Containers 1 pint and larger, plant growth regulators (PGRs) are usually not necessary. If needed for pack production, spray with B-Nine ® WSG at 2,500–5,000 ppm to help control plant height.
Cosmos flower faster under short days. For early spring production, do ensure that the plugs are grown under a 14-hour day length so finished plants will bulk properly.
FINISH PGRs
TECH TIPS
To control growth, apply one or two applications of Bonzi ® either as a spray at 20–40 ppm or as a drench at 0.5–1.0 ppm.
Cuphea is a facultative short day plant, so it will flower faster and stay more compact under short days. Plants can be finished cool at 50–62 °F (10–17 °C) if desired. If finished cool crop time will increase, but the plants will need less plant growth regulator (PGR) treatments.
FINISH PGRs
TECH TIPS
B-Nine ® WSG at 2,500-5,000 ppm if needed.
It is critical to provide at least 12 hours or ideally 14 hours of light to help prevent tuber formation and to promote bulking. Planting the plugs deep helps strengthen the main stem. Dahlias are sensitive to overwatering; allow the media to dry between irrigations.
FINISH PGRs
TECH TIPS
B-Nine ® WSG at 2,500-5,000 ppm if needed.
It is critical to provide at least 12 hours and ideally 14 hours of light to help prevent tuber formation and to promote bulking. Planting the plugs deep will help strengthen the main stem. Dahlias are sensitive to overwatering; allow the media to dry between irrigations.
FINISH PGRs
TECH TIPS
If needed, spray with Bonzi ® at 5–8 ppm.
Providing high light and growing cool will reduce the need for PGRs. Dianthus also responds well to a 5–10 °F (3–6 °C) negative DIF in the early morning. Day extension lighting to 14 hours will hasten flowering.
FINISH PGRs
TECH TIPS
If needed, spray with Bonzi ® at 5–8 ppm.
Providing high light and growing cool will reduce the need for PGRs. Dianthus also responds well to a 5–10 °F (3–6 °C) negative DIF in the early morning. Day extension lighting to 14 hours will hasten flowering.
GROWER SUCCESS GUIDE 2024–2025
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