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Temperature & Plant Responses to Temperature. Floral Careers Plant Propagation. Air Temperature. Most buildings, offices, and homes are maintained at temperatures between 60-80 degrees F. throughout the year . Microclimates.

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temperature plant responses to temperature

Temperature & Plant Responses to Temperature

Floral Careers Plant Propagation

air temperature
Air Temperature
  • Most buildings, offices, and homes are maintained at temperatures between 60-80 degrees F. throughout the year.
microclimates
Microclimates
  • Climatic conditions will vary from location to location within a home or building.
    • temperature
    • humidity
    • light
causes of microclimates
Causes of Microclimates
  • Heating/AC vents
  • Windows
  • Doors
  • Fireplaces
  • Incandescent Lights
  • Ventilation Fans

Dieffenbachia

what can be done
What Can Be Done?
  • People can move to a more suitable location, plants can’t!
  • Choices
    • Move the plant, or
    • Try to change the climate
cold temperatures
Cold Temperatures
  • Causes:
    • Drafts from windows or doors
    • Air-conditioning vents
cold temperature damage
Cold Temperature Damage
  • Plant symptoms:
    • Downward- curled leaf margins
    • Water-soaked lesions

Severe Cold Injury on Chinese Evergreen

cold temperature damage1
Cold Temperature Damage
  • Little to no new growth
  • Reduced need for water

Severe Cold Injury to Dieffenbachia

warm temperatures
Warm Temperatures
  • Causes:
    • Exposure to direct sunlight
    • Heating vents
    • Fireplaces
    • Incandescent light bulbs
    • Ovens
warm temperature damage
Warm Temperature Damage
  • Symptoms:
    • Leaves turn yellow and develop brown, dry margins and/or tips. Leaves may turn all brown.

High Temperature Damage to Heart-leaf Philodendron

warm temperature damage1
Warm Temperature Damage
  • Plants become “stretched” or spindly.
  • Problems with insects, especially spider mites.
rule of thumb
Rule of Thumb...
  • Most interior plants are more tolerant of HIGH TEMPERATURES than of COLD TEMPERATURES.
  • Many interior plants are damaged at temperatures of only 50 degrees F, or less!
humidity
Humidity
  • Foliage plants like 80%.
  • < 20% during the winter.
  • How can we increase humidity?