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.
As covered in this article about orchids care and light, Cymbidiums need medium to bright light intensity in order to thrive, and do best with as much light as possible. If your Cymbidium orchid is receiving the optimal amount of light the leaves will be a yellow-green color.Too much light will cause the leaves to become yellow, and too little light will cause the leaves to become a very dark green color.ertilizer Requirements. When the Cymbidium is in active growth, you will want to fertilize regularly. An orchid fertilizer solution of (20-20-20) is recommended. During the winter months, applying fertilizer once a month is sufficient.