VEGETATIVE PROPAGATION
Geranium Zonal AMERICANA ® / NOVELTY COLLECTION / ROCKY MOUNTAIN ™ / TANGO ™ Pelargonium zonale REC TRAY PRODUCT FORM ROOTING HORMONE MIST TIME PINCH PROP TIME BOTTOM HEAT 105-cell (30 mm) or larger URC, CC, AutoStix ® Not recommended CapSil ® (spray adjuvant) can be sprayed on the cuttings at a rate of 2–4 oz/100 gal within 1–2 days after sticking to help rehydrate the cuttings. Misting should be significantly reduced after 3–4 days and after cuttings become fully hydrated. Not recommended 3.5–4 weeks 70–74 °F (21–23 °C) Comments: To help reduce bottom leaf yellowing during propagation (e.g., on delayed shipments or where cuttings have gotten warm during shipping), Fascination ® can be sprayed on the cuttings at 2.0–2.5 ppm within 24 hours after sticking. Americana Zonal Geranium growth can be controlled using sprays of Altercel ® at 750–1,000 ppm and under hot conditions with a tank mix spray of Altercel ® (1,000 ppm) + B-Nine ® WSG (2,500 ppm). Bonzi ® sprays are not recommended in propagation because of the chance of getting into the rooting media and stunting the plant. Florel ® can also be sprayed at 300–350 ppm 2.5–3 weeks after sticking and after good root formation to improve branching, reduce premature flowering, and to control growth. Do not spray Florel ® on stressed or weak cuttings. For all sprays listed above, the mist should be off for a minimum of one hour for the plant growth regulator (PGR) to absorb into the leaf tissue.
Heliotrope SCENTROPIA ™ Heliotropium arborescens REC TRAY PRODUCT FORM ROOTING HORMONE MIST TIME
PINCH
PROP TIME BOTTOM HEAT
105-cell (30 mm) or larger
URC, CC
Recommended
CapSil ® (spray adjuvant) can be sprayed on the cuttings at a rate of 2–4 oz/100 gal within 1–2 days after sticking to help rehydrate the cuttings. Misting should be significantly reduced after 3–4 days and after cuttings become fully hydrated.
Not recommended
4.5–5 weeks 72–74 °F (22–23 °C)
Comments: To control growth after rooting, a spray of B-Nine ® WSG (1,500–2,500 ppm) can be used. A tank-mix spray of Florel ® (350 ppm) + B-Nine ® WSG (1,500–2,500 ppm) can also be applied to control growth and improve branching. Cuttings of Scentropia Heliotrope are sensitive to chilling, so avoid storing cuttings <50 °F (10 °C). Stick unrooted cuttings immediately upon arrival—they do not like to be stored. Avoid over-misting during propagation.
Impatiens SILHOUETTE ® Impatiens walleriana REC TRAY PRODUCT FORM ROOTING HORMONE MIST TIME
PINCH
PROP TIME BOTTOM HEAT
105-cell (30 mm) or larger
URC, AutoStix ®
Not recommended
CapSil ® (spray adjuvant) can be sprayed on the cuttings at a rate of 2–4 oz/100 gal within 1–2 days after sticking to help rehydrate the cuttings. Misting should be significantly reduced after 3–4 days and after cuttings become fully hydrated.
Not recommended
3.5–4 weeks 70–74 °F (21–23 °C)
Comments: To control growth, sprays of Bonzi ® (5 ppm) can be applied. Growers can also try a combo spray of Florel ® (350 ppm) + B-Nine ® WSG (1,500 ppm) to control growth and improve branching. Silhouette Impatiens are fast rooters and will be ready to transplant from propagation relatively quickly. Unrooted cuttings are sensitive to chilling, so avoid storing cuttings <50°F (10 °C). Subdue Maxx ® and/or Segway ® drenches are recommended plug stage fungicides for disease management.
Impatiens Interspecific New Guinea SPECTRA ™ Impatiens interspecific REC TRAY PRODUCT FORM ROOTING HORMONE MIST TIME
PINCH
PROP TIME BOTTOM HEAT
105-cell (30 mm) or larger
URC
Not recommended
CapSil ® (spray adjuvant) can be sprayed on the cuttings at a rate of 2–4 oz/100 gal within 1–2 days after sticking to help rehydrate the cuttings. Misting should be significantly reduced after 3–4 days and after cuttings become fully hydrated.
Not recommended
3.5–4 weeks 70–74 °F (21–23 °C)
Comments: To control growth, sprays of Bonzi ® (1–2 ppm) are generally used. Growers can also spray Florel ® (250–300 ppm) at 1–2 days after sticking unrooted cuttings to reduce premature flower bud development and help provide more uniform (but delayed) flowering during finishing. This is a good strategy for baskets or large patio pots where early flowering is not desired.
Impatiens New Guinea SONIC ® / SUPER SONIC ® Impatiens hawkeri REC TRAY PRODUCT FORM ROOTING HORMONE MIST TIME
PINCH
PROP TIME BOTTOM HEAT
105-cell (30 mm) or larger
URC
Not recommended
CapSil ® (spray adjuvant) can be sprayed on the cuttings at a rate of 2–4 oz/100 gal within 1–2 days after sticking to help rehydrate the cuttings. Misting should be significantly reduced after 3–4 days and after cuttings become fully hydrated.
Not recommended
3.5–4 weeks 70–74 °F (21–23 °C)
Comments: To control growth, sprays of Bonzi ® (1–2 ppm) are generally used. Growers can also spray Florel ® (250–300 ppm) at 1–2 days after sticking unrooted cuttings to reduce premature flower bud development and help provide more uniform (but delayed) flowering during finishing. This is a good strategy for baskets or large patio pots where early flowering is not desired.
Ipomoea SIDEKICK ™ Ipomoea batatas REC TRAY PRODUCT FORM ROOTING HORMONE MIST TIME
PINCH
PROP TIME BOTTOM HEAT
105-cell (30 mm) or larger
URC
Not recommended
CapSil ® (spray adjuvant) can be sprayed on the cuttings at a rate of 2–4 oz/100 gal within 1–2 days after sticking to help rehydrate the cuttings. Misting should be significantly reduced after 3–4 days and after cuttings become fully hydrated.
Recommended 3.5–4 weeks 70–74 °F (21–23 °C)
Comments: The use of plant growth regulators (PGRs) is generally not needed in propagation. Stick unrooted cuttings immediately to prevent dehydration. Plants are chilling sensitive, so avoid storing cuttings <50 °F (10 °C).
Lantana BANDANA ® / BANDITO ™ Lantana camara REC TRAY PRODUCT FORM ROOTING HORMONE MIST TIME
PINCH
PROP TIME BOTTOM HEAT
105-cell (30 mm) or larger
URC, CC, AutoStix ®
Recommended
CapSil ® (spray adjuvant) can be sprayed on the cuttings at a rate of 2–4 oz/100 gal within 1–2 days after sticking to help rehydrate the cuttings. Misting should be significantly reduced after 3–4 days and after cuttings become fully hydrated.
Not recommended
4.5–5 weeks 72–74 °F (22–23 °C)
Comments: To control growth after rooting, a spray of B-Nine ® WSG (2,500 ppm) can be used. A tank-mix spray of Florel ® (350 ppm) + B-Nine ® WSG (2,500 ppm) can also be used to control growth and improve branching.
GROWER SUCCESS GUIDE 2023-2024 | ANNUALS
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