An orchid may lose the green color of its leaves for various reasons.
These may include diseases and insect pests, aging leaves, lack or excess of fertilizers, improper watering, poor care and unsuitable conditions for the plant. To find out the exact cause, you need to carefully examine the plant and check the condition of the substrate and roots.
Depending on the cause, you can take different measures: change the watering and feeding regime, transplant the orchid into a new substrate and pot, treat the plant for pests or diseases, remove damaged leaves or roots.
For prevention, it is necessary to maintain optimal conditions for keeping the orchid: temperature, lighting, humidity, aeration and cleanliness.
An orchid needs to be replanted once every 1-2 years or when the plant outgrows its pot. It is better to replant in the spring or after flowering. To replant, you need to choose a suitable pot, soil and tools. Here are the main steps for replanting an orchid:
Water the orchid three days before repotting and water the new soil in advance.
Carefully remove the orchid from the old pot. If the roots are too tangled, cut or break the pot.
Inspect the roots and remove any damaged or rotten ones. Treat the cuts with charcoal or cinnamon.
Place the orchid in the new pot and add fresh soil. Make sure the plant is at the same depth as it was in the old pot.
After replanting, the orchid needs to be watered moderately and placed in a bright place.
Do not fertilize the orchid for a month after repotting.