Production Schedule For Market Windows Stick Cuttings Ready for Retail October May 21 (Week 26) Oct. 8 (Week 40) November July 2 (Week 30) Nov. 19 (Week 46) December July 16 (Week 28) Dec. 3 (Week 48) February Sept. 17 (Week 37) Feb. 4 (Week 5) March Nov. 5 (Week 44) March 18 (Week 11) May Dec. 17 (Week 50) May 6 (Week 18) Recommendations for 6.5-inch pots
plants are produced, photoperiod manipulation with lighting or black cloth will be necessary. Crop Timing • 4-inch pot – one liner, 10 weeks • 6-inch pot – one liner, 20 weeks Temperature Recommended temperatures: • Propagation – Day – 76-82˚F/Night 70-74˚F • Growing On – Day – 80-82˚F/Night 70-72˚F • Finishing from short days – Day 72- 75˚ / Night – 65-68˚F • Temperatures can be adjusted to change the rate of flower develop- ment, however, night temperatures should never go below 62˚F. Feeding Fertility needs are very similar to poinsettias, however, due to the
compact nature of Princet- tia, monitor EC of the media closely to ensure the rate of fertilizer is not too high compared to the growth rate. Ideally, the EC should range from 5.8-6.2 mmhos/ cm. Consider using 250 ppm 15-5-15 cal/mag com- plete with micro nutrients.
• Propagation – B-Nine 1000 ppm / Cycocel 1000 ppm • After transplant – Cycocel 750 – 1250 ppm • Do not apply Cycocel after the sign of first color. Pests & Diseases Insect pests and diseases that im- pact poinsettias also impact Princet- tia. Monitor closely for whiteflies and watch root health throughout pro- duction. As flowers develop monitor for botrytis.
Growth Regulators Princettia varieties are much more compact than most commercial poin- settia cultivars. In most cases, plant growth regulators will not be needed. In larger product forms, additional vegetative growth should be added If height control is needed, Princet- tia responds very well to B-Nine ® / Cycocel ® in propagation and Cycocel alone after transplant. Consider the following rates:
Keys to Success: • Do not over growth regulate. In most cases Princettia can be grown without using PGR’s. • Grow and finish Princettia warm. If temperatures are too cool, the growth rate will be slow and flower devel- opment delayed. • Do not overwater Princettia varieties, which are more compact and will likely require water less frequently than more vigorous poinsettias. • Pay attention to the natural photoperiod and provide artificial manipulation, if necessary, depending on the time of year.
Experience the Suntory Difference!
✓ Gorgeous colors ✓ Naturally compact ✓ Excellent branching
2010 First Prize Innovert Gold Medal at Solon du Vegetal, France 2009 Gold Medal at Green Expo Sydney, Australia 2009 Silver Medal at Floral Gent, Belgium
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