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  1. Post-Harvest Physiology Flower Processing Floral Design Ornamental Horticulture Plant Physiology
  2.  Flower food contains:  a bio-inhibitor  like bleach to kill bacteria  a sugar compound for the flower food  helps flowers open  an acidifier  to maintain the pH level General Background Info: Fresh Flower Food
  3. General Background Info: Flower Plumbing  Xylem & Phloem  These are the tubes that move water and food products up and down the stem of the plant.
  4. General Background Info: Old, Dead Flowers  Ethylene  This is the aging hormone gas from plants.  It causes flower blooms to open.  It can also cause premature aging of flowers.
  5. When Flowers arrive: Processing Flowers  1. Debunch  Take flowers out of plastic sleeves to release any ethylene gas.  Cut open the bundles so the blooms have room to open and breath.  2. Cut & Clean Stems  Make a fresh cut, about 1 inch from the bottom to provide a new water source for the flower stem.  Remove any lower leaves that will be underwater. Step by Step:
  6.  3. Place in flower solution  Be sure flowers are able to “drink” the flower solution for at least 1 hour at room temperature. When Flowers arrive: Condition Flowers Step by Step:
  7. After Processing: Storing Flowers  4. After drinking for an hour, its time to “harden” the flowers.  Place them in the cooler!  Most common flowers should be stored at 32 – 38 degrees F. Step by Step:
  8.  Tropical Flowers  Store at temperatures between 55 – 75 degrees F  Keep air humid  mist with water Special Circumstances
  9. Special Circumstances  Curving Stems  For roses and tulips, leave the plastic sleeves on while letting them ‘drink’ the floral solution, to prevent curving stems.
  10. Special Circumstances  Stripping roses  Be careful not to strip the ‘bark’ because the xylem is right below the surface, rather than in the center of the stem.
  11. Special Circumstances  Gerbera Daisies:  Use chicken wire to support the flower heads to prevent bent neck.  Also, keep them in just enough water, about 2 – 4 inches. Their stems are spongy and absorb lots of water, which can cause them to wilt prematurely.
  12. Storing Foliage  Greens, like leather leaf and other plumosa ferns, can be stored in the cooler without a water bucket.  Keep foliage wet, hose down the bunches.  Keep foliage wrapped in plastic bags inside the boxes to prevent drying out.
  13. Tropisms  Tropisms is when flower stems curve.  We want to prevent this problem when storing flowers.  Phototropism  This is when flowers curve towards a light source.  like turning toward a window
  14. Tropisms  Geotropism  This is when flowers curve up away from gravity.  growing upwards, when laying down