The Phalaenopsis thrives best at a minimum night temperature of 16 ° C and a maximum day temperature of 32 ° C. An ideal daytime temperature is between 20 to 22 ° C. This orchid requires a lot of light but does not tolerate direct sunlight, especially in the summer months. A place on the windowsill facing (north) east or (south) west is ideal. When leaves turn yellow, it can be a sign of too much direct sunlight. The loss of flower buds or dark green leaves indicate a possible lack of light.
Water and moisture
Do not pour the water for the orchid in the heart of the plant, but on the soil in the pot. The ideal irrigation water is lukewarm with an acidity (pH) of 6-7. Rainwater is better than tap water that contains (too) much lime. Preferably water early in the day. Better yet, submerge the pot in a bucket for a minute. Then the orchid can go without water for seven days.
The Phalaenopsis has a high humidity in its natural environment. If you want to cultivate or propagate the plant, this is best done in damp places, such as a kitchen, bathroom or conservatory.
Soil and Fertilization
It is important that the Phalaenopsis is in an airy soil that provides a moisture-containing drainage. Special orchid soil, which is for sale at most garden centers, is ideal for this. Do not use ordinary potting soil. Because there is often little food in the airy orchid soil, it is best to fertilize the Phalaenopsis via the irrigation water. Special orchid fertilizer is available for this. Fertilization is necessary in the months of March to October, about twice a month.
When a Phalaenopsis has finished flowering, you can try to get it to flower again. For this it is necessary to cut the branch above the second 'eye'. These are thickenings on the branch. You must start counting from the bottom.
If the Phalaenopsis develops aerial roots that will grow outside the pot, this is a sign that the orchid is having a good time. Just let the carrots sit. You don't have to put them back in the pot with the danger of damaging the roots.