Optimizing Greenhouse Environments Requires a Complete Systems View
Optimizing Greenhouse Environments Requires a Complete Systems View By Stacey Rocklin – Grower Advisor We hear all the time there...
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Poinsettia Cultivation – Phase 4
As we approach the month of December, hopefully everything we have done up to this time has prepared the poinsettia for the final stage of its growth cycle. Bract development is near completion, the root system is healthy and well established, and the size, tone and colour of the leaves have been optimized by a sound fertilization program.
Poinsettia Cultivation – Phase 3
The month of November focuses on bract expansion and cyathia development. Regardless of the region that you grow in, days are becoming shorter, light intensity has decreased, and the growth rate of the plants has slowed down when compared to growth activity during weeks 31 – 39.
Poinsettia Cultivation – Phase 2
The month of October begins with the transition from vegetative growth to bract and flower development in poinsettias. Cultural and environmental practices should now be directed towards reducing bract edge burn (BEB), a marginal edge necrosis that colored bracts are particularly susceptible to.
Poinsettia Cultivation – Phase 1
For poinsettias, the time of natural floral initiation is centered on the period between September 18th and 27th. As long as the day length is not altered artificially, cultivars will flower in 7 to 10 weeks after initiation, depending on the response group of the particular cultivar.