Prayer
plants Maranta leucoreura need very high humidity to thrive. They do best in a warm
greenhouse or a terrarium. Provide medium or bright filtered light, but never direct sun. Use a well drained soil with a little peat moss added, because they need a slightly acid soil. Keep the soil evenly moist but never soggy. When
plants rest in winter keep the soil drier. Use an equal analysis acid fertilizer such as 'Miracid' every 2 weeks except when the
plant is resting. Ideal temperatures are between 60 and 85 degrees. Dry air will be a problem in the winter, and this is probably the cause of the brown leaf tips. Putting the
plant in among several other house
plants will help to create a more humid atmosphere. Another aid would be to place a bowl of water in the immediate vicinity of the
plant.

hi

lover the above info is from this site i think you could put your prayer
plant out just no direct sunlight. i have one and it flourished after i repotted it now it sits pretty in a north window where it gets plenty of bright light but no direct sun. i hope i(well the site info) was able to answer your question
phoenix