Give your moth orchid a spot where it can get lots of sunlight. Outdoor and indoor orchids should not be obstructed from early morning or late afternoon sun.
Shade your moth orchids from mid-day sun whenever possible. This amount of sunlight can sometimes be too intense for orchids.
Water your moth orchids every seven to 10 days. Saturate the soil beneath the orchids completely. Ideally, wait until the soil is nearly dry before watering again.
Apply liquid plant food or fertilizer that features equal parts of N-P-K to the soil beneath the orchids. This should be applied every other time you water the plants. Stop applying these substances while the moth orchids are in their flowering season.