Something white that isn't snow

My orchid plant in bloom. This was a planter that was sent to the funeral home for John. I have kept it alive and this is the second time it has bloomed since last March. While I would not call myself an avid gardener I like growing plants, although most of my houseplants are artificial. The fact that this orchid has thrived has me believing that perhaps I need to read up on orchids and at least give it a little fertilizer. My intial impression of growing orchids is that it would be difficult but this planter certainly has proved that wrong.