Your plant is probably a large peace lily. There are several species, some make great window sill plants (the smaller types) and others are floor specimens (like yours). Have you ever seen it flower. Peace lilies produce white flowers. It would help us to see a photo of the entire plant, focussing on the stem where the leaves emerge. There are a few other tropicals that have leaves like this (bird of paradise, ornamental bananas) but their stems are very distinctive. If you send us another photo of the stem base, we’ll try to confirm our identification. Peace lilies grow best in bright, indirect light indoors, never direct sunlight. If the plant doesn’t get enough light, it won’t bloom, but if it gets too much direct sun on the leaves, it may get leaf burn. Give it regular water and feed with a slow-release fertilizer formulated for blooming container plants. Must have good drainage. Do not allow plant to sit in water as this leads to root rot.
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I have 2 very large white birds of paradise. I know it’s a bird of paradise. One has very brownish yellow spots that are crinoline up the leaves, see pic. What is this and how do I treat?
Yeah this is not a peace lily, it’s some type of bird of paradise. Bird of Paradise require much higher light levels, like south or west facing to really thrive. It can survive in east facing but will have laggy growth. Needs really good drainage similar to succulent care.
Looks like a Debbie Peach Peace Lily. Mine looks like the one above and I also have a white bird of paradise; The leaves look very similar.