ANNUALS | SEED FINISHING
FINISH PGRs
TECH TIPS
B-Nine ® WSG at 2,500–5,000 ppm or A-Rest ® at 1–3 ppm are effective if needed.
It is critical to not plant the plug too deep so as to bury the crown. Buried crowns can lead to hard, distorted growth or crown rot. Space plants on time so the leaves from one plant will not cover the center of another; shading the crown will delay flowering.
FINISH PGRs
TECH TIPS
If needed, sprays of B-Nine ® WSG at 2,500–5,000 ppm or A-Rest ® at 1–3 ppm are effective. Under long day conditions leaves will be larger so more frequent PGR applications may be necessary. Do not apply PGRs once the buds reach 1 cm (0.4 inches) in diameter (pea size) since this can cause smaller flower and short flower stems.
It is critical to not plant the plug too deep so as to bury the crown. Buried crowns can lead to hard, distorted growth or crown rot. Space plants on time so the leaves from one plant will not cover the center of another; shading the crown will delay flowering.
FINISH PGRs
TECH TIPS
Apply 3–4 ppm Bonzi ® (paclobutrazol) drench 1–2 weeks after pinch; 3–4 ppm drench at first sign of visible buds; 3–4 ppm drench when flowers start cracking color to hold for finish. Higher concentrations may be necessary under high temperature and long day conditions, but do not exceed 6 ppm for each drench.
A pinch is required to promote branching and control vigor. After 6–7 nodes develop on the stem, pinch shoot tips leaving 4 nodes. The nodes of Sunfinity are opposite so a pinch to 4 nodes would leave 8 leaves. This is a hard pinch. The top 2 leaves left after the pinch can be removed to help promote even branching.
FINISH PGRs
TECH TIPS
B-Nine ® WSG at 2,500 ppm and Altercel ™ at 800 ppm two weeks after transplant is highly effective for reducing height and producing a compact, well-branched plant. In warmer conditions, a second application is beneficial.
Avoid drying the media too much since this can cause premature flower bud abortion. Grow under high light levels for top quality. Leaves may show chlorosis if plants are grown too cool.
FINISH PGRs
TECH TIPS
Usually not required in larger containers. In small pots/packs or under low light conditions spray with Bonzi ® at 1–3 ppm as needed.
Ensure a good scouting program for Thrips is in place. Do not try to grow cool; plant growth will stall under 60 °F (16 °C).
FINISH PGRs
TECH TIPS
Responsive to B-Nine ® WSG, Bonzi ® , and Sumagic ® .
Use a calcium-based fertilizer and feed once a week at most to avoid soft growth and stretching of plants. Do not let plants go into the night with wet foliage or tip abortion may occur, especially during early stages of growth. Downward cupping or twisting of immature leaves may be caused by overuse of plant growth regulators (PGRs). It is better to use less water and fertilizer than PGRs to control growth. Preventive fungicide applications for foliar and root disease are recommended, especially in high humidity environments. Subdue Maxx ® , Mural ® , Micora ® , and Segovis ® fungicides can be used in a rotation program to control the common disease problems of Impatiens.
GROWER SUCCESS GUIDE 2024–2025
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