You can use the formula Tc = (5/9)*(Tf-32) where Tc = temperature in degrees Celsius, Tf = temperature in d â¦ egrees Fahrenheit.-109 F is -78.3 C. 2 people found this useful.ou can use the formula Tc = (5/9)*(Tf-32) where Tc = temperature in degrees Celsius, Tf = temperature in d â¦ egrees Fahrenheit.
Different types of orchids can be found growing everywhere from deep shade to full sun. The most commonly available orchids we grow at home need bright indirect light at a minimum, and in some case direct sunlight. We photographed this Brassvola orchid is growing in dappled sunlight along a riverbank in Belize.
Cool, Intermediate or Warm? Orchids are usually classified as either cool-, intermediate- or warm-growing depending on their temperature needs and the usual definitions of these ranges are: Warm 80-90F days and 65-70F nights, Intermediate 70-80F days and 55-65F nights and Cool 60-70F days and 50-55F nights. First, these temperature ranges are for winter conditions.