How To Care For Moss Plant. Water the moss daily for the next 2 to 3 weeks to establish it. Keep the area damp with regular watering for the next year or so to help the moss establish well.
Indoors you can place a bucket overtop your Spanish moss and then pour cups full of water over the plant until its dripping. Lay the sections of moss on the soil and tamp them firmly into position. Pick an area that gets full sun and has enough space for the plants to grow three to eight inches tall and 12 to 24 inches wide.
I lay a square piece of plywood over the patch and step onto it to create even pressure.
Use rainwater or filtered tap water for misting your plant. Make sure you keep the soil moist during the germination period. As the moss starts to grow and take hold it needs to be kept really moist. Mist the surface a couple of times a week to keep the moss moist.