Now it is time to actually create your own greenhouse. Damp small amounts of sphagnum and put it in a clear plastic bag. The bag should be big enough to fit to whole plant. Place the plant in the bag with the sphagnum but be sure to keep the plant and the sphagnum apart. Seal the bag and put it away in a warm and shady place. Make sure that the bag, at any time, avoids direct contact with sunlight. You do not want to cook the plant! Also, keep it in a shady, not dark, place.The humidity and the warmth, will stimulate root development and the shade is important to to keep the vegetative growth moderate. Hopefully, in a matter of weeks the plant will have a new root system and then you just repot the plant.