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Foliage Plants #2172. Poinsettias By Sarah Martz. Poinsettia Facts. Euphorbia pulcherrima Native to Mexico Named after Joel Poinsett First US ambassador to Mexico in 1895. Poinsettia Production. #1 potted flowering crop grown within the US Wholesale value of over $123 million a year.

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Foliage Plants #2172

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Foliage Plants #2172

Poinsettias

By Sarah Martz


Poinsettia Facts

  • Euphorbia pulcherrima

  • Native to Mexico

  • Named after Joel Poinsett

    • First US ambassador to Mexico in 1895


Poinsettia Production

  • #1 potted flowering crop grown within the US

  • Wholesale value of over $123 million a year


The True Flower

  • Bracts

    • Modified leaves that turn red

  • Cyathia

    • The true flower of the Poinsettia

    • Small yellow flower found in the middle of the bract


Propagation

  • Vegetatively propagated by tip cuttings

  • Stock plants are started by cuttings received in March-May

  • Once well rooted, they are potted in a container


Pinching

  • Decreases plant height and increases branching

  • Pinched at least once

  • Leave 8-11 leaves

  • Pinch poinsettias 7-10 days after planting


Growth Requirements

  • Short day plants

    • Require at least 12 hours of unbroken darkness

  • Media with high water holding capacity

    • Require large amounts of water

  • pH 6.0-6.2


Cultivars

  • Many different cultivars

    • Annette Hegg Series

    • Echespoint Series

    • Gutbier Series

    • Mikkelsens Series


http://abcnews.go.com/sections/business/DailyNews/poinsettia981207/


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