CARE OF SPANISH MOSS
When watering Spanish moss, make sure to use purified, distilled, or rainwater. Do not use chlorinated water. Keep Spanish moss moist as much as possible, so mist the plant whenever it is dry. Avoid misting if the plant is already damp, as too much moisture is not good for the plant either.
Humidity is also very important for the Spanish moss plant’s survival as an outdoor plant. To keep it from drying out, make sure to water it on all sides. Because the plant uses itself as fertilizer, it does not typically need to be fertilized. However, if the plant looks discolored or is growing poorly, spray it with a compost tea made with one part compost and one part water.
If you are growing Spanish moss indoors, then humidity is a key factor in its care in this environment, too. Like when growing the plant outdoors, make sure to water it on all sides to keep it from drying out. Indoors, these plants might need a little extra help, as there are fewer available nutrients to get from the air. Use a high-phosphorus fertilizer mixed at half the usual strength.