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					Poinsettia Production

         By: Matt Love
Agriculture Teacher/FFA Advisor
              Introduction

• Most important pot plant grown for the
  Christmas season.
        Poinsettia Production

• Many different cultivars grown
  •   Freedom (early)
  •   V14
  •   Marble
  •   Jingle Bells
  •   Gary (late)
            Poinsettia Facts

• Brought to the U.S. by J.R. Poinsett, the
  1st U.S. ambassador to Mexico.
• Come in a variety of colors including….
  •   Red*
  •   Pink
  •   White
  •   Speckled

                     Red is the Most Popular
              Poinsettia Facts

• The colorful part is
  actually not the
  flower.
   • It is a colorful leaf
     called a bract.
• The actual flower is
  yellow.
Parts of the Poinsettia
       Poinsettia Production

• Wholesale growers supply 2¼” rooted cuttings.
      Poinsettia Production

• Number of plants per pot depends….
  • On the pot size.
  • Whether the plants will be pinched or
    grown as single stem.
  • Size of flower.
      Poinsettia Production

• 4” pots
  • 1 plant for pinched or single stem.
• 6” pots
  • 2 plants for pinched.
  • 3 or 4 for single stem.
• 8” pot
  • 3 or 4 plants for pinched.
  • 6 or 7 for single stem.
       Poinsettia Production
• Temperatures
  • Should be 65oF at
    night.
  • 70 – 75oF during the
    day.
  • Plants will flower late
    or not at all if night
    temps gets above
    80oF.
  • *Some cultivars may
    vary.
    Poinsettia Best Practices

• Pinching
  • Done to increase the
    number of bracts on
    the plant.
  • Makes the plant
    appear fuller by
    having more flowers
    per stem.
       Poinsettia Production

• Media must be….
  • Free from diseases
    and insects.
  • Porous and well
    drained.
    Poinsettia Best Practices

• Large amounts of
  fertilizer needed
  from propagation
  until sold.
  • 6 days of water
    soluble 20-10-20
     • Clean water for rinse
       on Sunday
  • Poinsettia top
    dressing (15-16-17)
    Poinsettia Best Practices

• Pot August 15-20th
• Keep really wet 1st three days (wet
  floor)
• Tight Spacing
• Day 2
  • Fungicide Drench ( 1oz to 100 gal)
     • Repeat every 30 days (stop in November)
     • Prevents root rot and botrytis.
      Poinsettia Best Practices

• Cycocel
  •   Growth regulator
  •   Applied in September
  •   Drench or spray.
  •   Keeps poinsettias
      compact and from
      stretching.
    Poinsettia Best Practices

• Insects
  • Marathon for white flies.
     • (1/3 teaspoon to 6 ½” pot)
    Poinsettia Best Practices

• Molybdenum: Bad leaves
  w/ little points
  • (1 oz to 3 gal of water)
       Poinsettia Production

• Poinsettias are a short day photoperiodic
  plant.
• Bud set light period is from 12 hours to 12
  hours and 15 minutes.
• Vegetative growth light period is longer than
  hours.
• Two hours of light from about 11 p.m. to 1
  a.m. each night will cause short day effect.
Happy Holidays
            Designed By:

• Johnny M. Jessup; FFA Advisor
  • Hobbton High School