Orchid Care & Maintenance for Yellow Leaves

Root Rot

• Orchids need well-draining soil in order to grow properly. If you are watering your orchid too much, or too frequently, the plant might be suffering from root rot. Root rot commonly turns leaves yellow, and may cause the plant to whither. Check for root rot by removing the plant from the soil and inspecting the roots. Healthy orchid roots look white and firm; brown or mushy roots indicate root rot. Remove damaged roots with sterilized scissors and repot the plant in potting mix.

Location

• Orchids need plenty of light, but it must be indirect light or the plant may yellow or burn. Keep your orchid in a south-facing window where it will receive adequate indirect light each day. Ensure that the window isn't drafty or that you don't position the plant near a vent; cold or hot drafts may shock the plant and cause stunted growth and yellowing leaves.

Water

• Use the right temperature of water to prevent shocking the plant and turning the leaves yellow. Water the plant with room temperature or tepid water until the soil is moist but not soggy. Water too hot or too cold may shock the plant, causing yellow leaves. Allow the soil to dry between waterings to allow the water to drain off and prevent root rot. Watering frequency and quantity will depend upon the size of your plant, variety of orchid and the overall humidity in your home.

Fertilizer

• Like most plants, orchids need fertilizer to help the plant remain strong. Use a balanced fertilizer specifically intended for orchids for best results. Fertilizers with high phosphorous levels may cause the leaves to yellow permanently. Follow manufacturer's suggestion for quantities and frequency of fertilizer applications.