Mimesis orchids grow well at normal room temperatures, ideally between 15 and 25°C. Place the plant in a bright spot, avoiding direct sunlight in the summer months (April to August). This can cause the leaves to turn yellow. If the plant is losing flower buds or leaves, on the other hand, it can mean it isn’t getting enough light. Orchids also do not like drafts, big temperature fluctuations, flower bulbs or ripening fruit.