Answer: Unfortunately based on your description I am unable to identify your plant for you. It might be a purple leafed rubber plant (Ficus elastica "Burgundy" for example), or it might be a Calathea of some kind, or possibly some kind of Draceana, or possibly something else entirely.... Generally speaking, bright but indirect light and moderately moist soil would suit the plants I've named, along with a water soluble fertilizer formulated for foliage plants used sparingly spring through fall per the label instructions. You might try looking at a book of house plants at the library or book store to see if you can identify it, or possibly check with the florist that delivered it to see if they can tell you. Another possibility would be to take a photo or two to your county extension and/or local house plant suppliers and see if they can identify it for you. I'm sorry I can't be more specific for you.
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